Finding the Fourth Proportional to 2,144.02, 2,958.30 and 1,259.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.02 : 2,958.30 = 1,259.50 : x
2. Step 2: Convert to fraction form
   2,144.02/2,958.30 = 1,259.50/x
3. Step 3: Cross multiply
   2,144.02x = 2,958.30 × 1,259.50
4. Step 4: Simplify right side
   2,144.02x = 3,725,973.46
5. Step 5: Solve for x
   x = 3,725,973.46/2,144.02
6. Step 6: Final answer
   x = 1,737.85