Finding the Fourth Proportional to 1,085,761.18, 1,627,582.52 and 516,989.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085,761.18 : 1,627,582.52 = 516,989.51 : x
2. Step 2: Convert to fraction form
   1,085,761.18/1,627,582.52 = 516,989.51/x
3. Step 3: Cross multiply
   1,085,761.18x = 1,627,582.52 × 516,989.51
4. Step 4: Simplify right side
   1,085,761.18x = 841,443,082,653.93
5. Step 5: Solve for x
   x = 841,443,082,653.93/1,085,761.18
6. Step 6: Final answer
   x = 774,979.89