Finding the Fourth Proportional to 940,845.83, 1,298,478.56 and 558,874.13

Step by Step Solution

1. Step 1: Write the proportion equation
   940,845.83 : 1,298,478.56 = 558,874.13 : x
2. Step 2: Convert to fraction form
   940,845.83/1,298,478.56 = 558,874.13/x
3. Step 3: Cross multiply
   940,845.83x = 1,298,478.56 × 558,874.13
4. Step 4: Simplify right side
   940,845.83x = 725,686,066,256.89
5. Step 5: Solve for x
   x = 725,686,066,256.89/940,845.83
6. Step 6: Final answer
   x = 771,312.42