Finding the Fourth Proportional to 2,144.30, 2,959.65 and 1,348.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.30 : 2,959.65 = 1,348.10 : x
2. Step 2: Convert to fraction form
   2,144.30/2,959.65 = 1,348.10/x
3. Step 3: Cross multiply
   2,144.30x = 2,959.65 × 1,348.10
4. Step 4: Simplify right side
   2,144.30x = 3,989,904.17
5. Step 5: Solve for x
   x = 3,989,904.17/2,144.30
6. Step 6: Final answer
   x = 1,860.70