Finding the Fourth Proportional to 741,985.83, 1,023,912.72 and 402,446.79

Step by Step Solution

1. Step 1: Write the proportion equation
   741,985.83 : 1,023,912.72 = 402,446.79 : x
2. Step 2: Convert to fraction form
   741,985.83/1,023,912.72 = 402,446.79/x
3. Step 3: Cross multiply
   741,985.83x = 1,023,912.72 × 402,446.79
4. Step 4: Simplify right side
   741,985.83x = 412,070,387,404.17
5. Step 5: Solve for x
   x = 412,070,387,404.17/741,985.83
6. Step 6: Final answer
   x = 555,361.53