Finding the Fourth Proportional to 1,414.95, 2,120.72 and 1,248.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,414.95 : 2,120.72 = 1,248.89 : x
2. Step 2: Convert to fraction form
   1,414.95/2,120.72 = 1,248.89/x
3. Step 3: Cross multiply
   1,414.95x = 2,120.72 × 1,248.89
4. Step 4: Simplify right side
   1,414.95x = 2,648,529.15
5. Step 5: Solve for x
   x = 2,648,529.15/1,414.95
6. Step 6: Final answer
   x = 1,871.82