Finding the Fourth Proportional to 851,564.52, 1,275,900.83 and 513,895.62

Step by Step Solution

1. Step 1: Write the proportion equation
   851,564.52 : 1,275,900.83 = 513,895.62 : x
2. Step 2: Convert to fraction form
   851,564.52/1,275,900.83 = 513,895.62/x
3. Step 3: Cross multiply
   851,564.52x = 1,275,900.83 × 513,895.62
4. Step 4: Simplify right side
   851,564.52x = 655,679,845,521.89
5. Step 5: Solve for x
   x = 655,679,845,521.89/851,564.52
6. Step 6: Final answer
   x = 769,970.84