Finding the Fourth Proportional to 978,499.44, 1,350,342.72 and 591,261.12

Step by Step Solution

1. Step 1: Write the proportion equation
   978,499.44 : 1,350,342.72 = 591,261.12 : x
2. Step 2: Convert to fraction form
   978,499.44/1,350,342.72 = 591,261.12/x
3. Step 3: Cross multiply
   978,499.44x = 1,350,342.72 × 591,261.12
4. Step 4: Simplify right side
   978,499.44x = 798,405,149,011.05
5. Step 5: Solve for x
   x = 798,405,149,011.05/978,499.44
6. Step 6: Final answer
   x = 815,948.50