Finding the Fourth Proportional to 1,065,513.35, 1,598,900.57 and 392,067.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065,513.35 : 1,598,900.57 = 392,067.57 : x
2. Step 2: Convert to fraction form
   1,065,513.35/1,598,900.57 = 392,067.57/x
3. Step 3: Cross multiply
   1,065,513.35x = 1,598,900.57 × 392,067.57
4. Step 4: Simplify right side
   1,065,513.35x = 626,877,059,191.18
5. Step 5: Solve for x
   x = 626,877,059,191.18/1,065,513.35
6. Step 6: Final answer
   x = 588,333.37