Finding the Fourth Proportional to 978,278.52, 1,465,047.72 and 497,241.12

Step by Step Solution

1. Step 1: Write the proportion equation
   978,278.52 : 1,465,047.72 = 497,241.12 : x
2. Step 2: Convert to fraction form
   978,278.52/1,465,047.72 = 497,241.12/x
3. Step 3: Cross multiply
   978,278.52x = 1,465,047.72 × 497,241.12
4. Step 4: Simplify right side
   978,278.52x = 728,481,969,146.25
5. Step 5: Solve for x
   x = 728,481,969,146.25/978,278.52
6. Step 6: Final answer
   x = 744,657.02