Finding the Fourth Proportional to 1,375,726.50, 1,898,502.57 and 772,114.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375,726.50 : 1,898,502.57 = 772,114.50 : x
2. Step 2: Convert to fraction form
   1,375,726.50/1,898,502.57 = 772,114.50/x
3. Step 3: Cross multiply
   1,375,726.50x = 1,898,502.57 × 772,114.50
4. Step 4: Simplify right side
   1,375,726.50x = 1,465,861,362,584.27
5. Step 5: Solve for x
   x = 1,465,861,362,584.27/1,375,726.50
6. Step 6: Final answer
   x = 1,065,518.01