Finding the Fourth Proportional to 2,144.64, 2,959.50 and 1,200.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,144.64 : 2,959.50 = 1,200.36 : x
2. Step 2: Convert to fraction form
   2,144.64/2,959.50 = 1,200.36/x
3. Step 3: Cross multiply
   2,144.64x = 2,959.50 × 1,200.36
4. Step 4: Simplify right side
   2,144.64x = 3,552,465.42
5. Step 5: Solve for x
   x = 3,552,465.42/2,144.64
6. Step 6: Final answer
   x = 1,656.44