Finding the Fourth Proportional to 719,387.52, 993,152.52 and 432,978

Step by Step Solution

1. Step 1: Write the proportion equation
   719,387.52 : 993,152.52 = 432,978 : x
2. Step 2: Convert to fraction form
   719,387.52/993,152.52 = 432,978/x
3. Step 3: Cross multiply
   719,387.52x = 993,152.52 × 432,978
4. Step 4: Simplify right side
   719,387.52x = 430,013,191,804.56
5. Step 5: Solve for x
   x = 430,013,191,804.56/719,387.52
6. Step 6: Final answer
   x = 597,749.03