Finding the Fourth Proportional to 1,401.89, 2,103.20 and 1,248.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.89 : 2,103.20 = 1,248.86 : x
2. Step 2: Convert to fraction form
   1,401.89/2,103.20 = 1,248.86/x
3. Step 3: Cross multiply
   1,401.89x = 2,103.20 × 1,248.86
4. Step 4: Simplify right side
   1,401.89x = 2,626,585.59
5. Step 5: Solve for x
   x = 2,626,585.59/1,401.89
6. Step 6: Final answer
   x = 1,873.61