Finding the Fourth Proportional to 1,204,714.06, 1,662,489.89 and 688,462.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,204,714.06 : 1,662,489.89 = 688,462.05 : x
2. Step 2: Convert to fraction form
   1,204,714.06/1,662,489.89 = 688,462.05/x
3. Step 3: Cross multiply
   1,204,714.06x = 1,662,489.89 × 688,462.05
4. Step 4: Simplify right side
   1,204,714.06x = 1,144,561,186,018.91
5. Step 5: Solve for x
   x = 1,144,561,186,018.91/1,204,714.06
6. Step 6: Final answer
   x = 950,068.75