Finding the Fourth Proportional to 1,139,938.92, 1,573,162.02 and 630,632.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,938.92 : 1,573,162.02 = 630,632.52 : x
2. Step 2: Convert to fraction form
   1,139,938.92/1,573,162.02 = 630,632.52/x
3. Step 3: Cross multiply
   1,139,938.92x = 1,573,162.02 × 630,632.52
4. Step 4: Simplify right side
   1,139,938.92x = 992,087,129,040.89
5. Step 5: Solve for x
   x = 992,087,129,040.89/1,139,938.92
6. Step 6: Final answer
   x = 870,298.50