Finding the Fourth Proportional to 2,143.39, 2,957.93 and 1,259.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.39 : 2,957.93 = 1,259.02 : x
2. Step 2: Convert to fraction form
   2,143.39/2,957.93 = 1,259.02/x
3. Step 3: Cross multiply
   2,143.39x = 2,957.93 × 1,259.02
4. Step 4: Simplify right side
   2,143.39x = 3,724,081.39
5. Step 5: Solve for x
   x = 3,724,081.39/2,143.39
6. Step 6: Final answer
   x = 1,737.47