Finding the Fourth Proportional to 691,494.52, 1,036,626.18 and 271,063.48

Step by Step Solution

1. Step 1: Write the proportion equation
   691,494.52 : 1,036,626.18 = 271,063.48 : x
2. Step 2: Convert to fraction form
   691,494.52/1,036,626.18 = 271,063.48/x
3. Step 3: Cross multiply
   691,494.52x = 1,036,626.18 × 271,063.48
4. Step 4: Simplify right side
   691,494.52x = 280,991,499,809.91
5. Step 5: Solve for x
   x = 280,991,499,809.91/691,494.52
6. Step 6: Final answer
   x = 406,353.91