Finding the Fourth Proportional to 744,757.78, 1,116,261.86 and 344,553.18

Step by Step Solution

1. Step 1: Write the proportion equation
   744,757.78 : 1,116,261.86 = 344,553.18 : x
2. Step 2: Convert to fraction form
   744,757.78/1,116,261.86 = 344,553.18/x
3. Step 3: Cross multiply
   744,757.78x = 1,116,261.86 × 344,553.18
4. Step 4: Simplify right side
   744,757.78x = 384,611,573,575.72
5. Step 5: Solve for x
   x = 384,611,573,575.72/744,757.78
6. Step 6: Final answer
   x = 516,425.05