Finding the Fourth Proportional to 825,492.72, 1,139,343.30 and 535,463.70

Step by Step Solution

1. Step 1: Write the proportion equation
   825,492.72 : 1,139,343.30 = 535,463.70 : x
2. Step 2: Convert to fraction form
   825,492.72/1,139,343.30 = 535,463.70/x
3. Step 3: Cross multiply
   825,492.72x = 1,139,343.30 × 535,463.70
4. Step 4: Simplify right side
   825,492.72x = 610,076,978,988.21
5. Step 5: Solve for x
   x = 610,076,978,988.21/825,492.72
6. Step 6: Final answer
   x = 739,045.86