Finding the Fourth Proportional to 1,065,510.28, 1,598,895.98 and 392,064.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,510.28 : 1,598,895.98 = 392,064.50 : x
2. Step 2: Convert to fraction form
   1,065,510.28/1,598,895.98 = 392,064.50/x
3. Step 3: Cross multiply
   1,065,510.28x = 1,598,895.98 × 392,064.50
4. Step 4: Simplify right side
   1,065,510.28x = 626,870,352,950.71
5. Step 5: Solve for x
   x = 626,870,352,950.71/1,065,510.28
6. Step 6: Final answer
   x = 588,328.77