Finding the Fourth Proportional to 902,462.72, 1,245,264 and 558,644.48

Step by Step Solution

1. Step 1: Write the proportion equation
   902,462.72 : 1,245,264 = 558,644.48 : x
2. Step 2: Convert to fraction form
   902,462.72/1,245,264 = 558,644.48/x
3. Step 3: Cross multiply
   902,462.72x = 1,245,264 × 558,644.48
4. Step 4: Simplify right side
   902,462.72x = 695,659,859,742.72
5. Step 5: Solve for x
   x = 695,659,859,742.72/902,462.72
6. Step 6: Final answer
   x = 770,846.09