Finding the Fourth Proportional to 540,191.34, 745,399.23 and 298,459.02

Step by Step Solution

1. Step 1: Write the proportion equation
   540,191.34 : 745,399.23 = 298,459.02 : x
2. Step 2: Convert to fraction form
   540,191.34/745,399.23 = 298,459.02/x
3. Step 3: Cross multiply
   540,191.34x = 745,399.23 × 298,459.02
4. Step 4: Simplify right side
   540,191.34x = 222,471,123,694.56
5. Step 5: Solve for x
   x = 222,471,123,694.56/540,191.34
6. Step 6: Final answer
   x = 411,837.63