Finding the Fourth Proportional to 2,238.72, 3,088.32 and 1,411.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.72 : 3,088.32 = 1,411.20 : x
2. Step 2: Convert to fraction form
   2,238.72/3,088.32 = 1,411.20/x
3. Step 3: Cross multiply
   2,238.72x = 3,088.32 × 1,411.20
4. Step 4: Simplify right side
   2,238.72x = 4,358,237.18
5. Step 5: Solve for x
   x = 4,358,237.18/2,238.72
6. Step 6: Final answer
   x = 1,946.75