Finding the Fourth Proportional to 2,630.17, 3,943.43 and 1,242.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,630.17 : 3,943.43 = 1,242.34 : x
2. Step 2: Convert to fraction form
   2,630.17/3,943.43 = 1,242.34/x
3. Step 3: Cross multiply
   2,630.17x = 3,943.43 × 1,242.34
4. Step 4: Simplify right side
   2,630.17x = 4,899,080.83
5. Step 5: Solve for x
   x = 4,899,080.83/2,630.17
6. Step 6: Final answer
   x = 1,862.65