Finding the Fourth Proportional to 825,461.76, 1,139,300.61 and 535,432.75

Step by Step Solution

1. Step 1: Write the proportion equation
   825,461.76 : 1,139,300.61 = 535,432.75 : x
2. Step 2: Convert to fraction form
   825,461.76/1,139,300.61 = 535,432.75/x
3. Step 3: Cross multiply
   825,461.76x = 1,139,300.61 × 535,432.75
4. Step 4: Simplify right side
   825,461.76x = 610,018,858,688.98
5. Step 5: Solve for x
   x = 610,018,858,688.98/825,461.76
6. Step 6: Final answer
   x = 739,003.17