Finding the Fourth Proportional to 1,414.80, 2,111.94 and 1,242

Step by Step Solution

1. Step 1: Write the proportion equation
   1,414.80 : 2,111.94 = 1,242 : x
2. Step 2: Convert to fraction form
   1,414.80/2,111.94 = 1,242/x
3. Step 3: Cross multiply
   1,414.80x = 2,111.94 × 1,242
4. Step 4: Simplify right side
   1,414.80x = 2,623,029.48
5. Step 5: Solve for x
   x = 2,623,029.48/1,414.80
6. Step 6: Final answer
   x = 1,853.99