Finding the Fourth Proportional to 2,238,592.52, 3,089,367.20 and 1,258,839.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238,592.52 : 3,089,367.20 = 1,258,839.90 : x
2. Step 2: Convert to fraction form
   2,238,592.52/3,089,367.20 = 1,258,839.90/x
3. Step 3: Cross multiply
   2,238,592.52x = 3,089,367.20 × 1,258,839.90
4. Step 4: Simplify right side
   2,238,592.52x = 3,889,018,700,258.38
5. Step 5: Solve for x
   x = 3,889,018,700,258.38/2,238,592.52
6. Step 6: Final answer
   x = 1,737,260.65