Finding the Fourth Proportional to 841,040, 1,262,084.88 and 342,404

Step by Step Solution

1. Step 1: Write the proportion equation
   841,040 : 1,262,084.88 = 342,404 : x
2. Step 2: Convert to fraction form
   841,040/1,262,084.88 = 342,404/x
3. Step 3: Cross multiply
   841,040x = 1,262,084.88 × 342,404
4. Step 4: Simplify right side
   841,040x = 432,142,911,251.52
5. Step 5: Solve for x
   x = 432,142,911,251.52/841,040
6. Step 6: Final answer
   x = 513,819.69