Finding the Fourth Proportional to 2,143.48, 2,957.98 and 1,199.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.48 : 2,957.98 = 1,199.29 : x
2. Step 2: Convert to fraction form
   2,143.48/2,957.98 = 1,199.29/x
3. Step 3: Cross multiply
   2,143.48x = 2,957.98 × 1,199.29
4. Step 4: Simplify right side
   2,143.48x = 3,547,475.83
5. Step 5: Solve for x
   x = 3,547,475.83/2,143.48
6. Step 6: Final answer
   x = 1,655.01