Finding the Fourth Proportional to 2,142,728.61, 3,213,925.24 and 626,425.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,728.61 : 3,213,925.24 = 626,425.62 : x
2. Step 2: Convert to fraction form
   2,142,728.61/3,213,925.24 = 626,425.62/x
3. Step 3: Cross multiply
   2,142,728.61x = 3,213,925.24 × 626,425.62
4. Step 4: Simplify right side
   2,142,728.61x = 2,013,285,111,100.65
5. Step 5: Solve for x
   x = 2,013,285,111,100.65/2,142,728.61
6. Step 6: Final answer
   x = 939,589.41