Finding the Fourth Proportional to 1,686,684,714.48, 2,526,732,134.28 and 1,161,961,128.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,684,714.48 : 2,526,732,134.28 = 1,161,961,128.72 : x
2. Step 2: Convert to fraction form
   1,686,684,714.48/2,526,732,134.28 = 1,161,961,128.72/x
3. Step 3: Cross multiply
   1,686,684,714.48x = 2,526,732,134.28 × 1,161,961,128.72
4. Step 4: Simplify right side
   1,686,684,714.48x = 2,935,964,522,721,083,904
5. Step 5: Solve for x
   x = 2,935,964,522,721,083,904/1,686,684,714.48
6. Step 6: Final answer
   x = 1,740,671,802.81