Finding the Fourth Proportional to 1,868.32, 2,796.72 and 1,434.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.32 : 2,796.72 = 1,434.88 : x
2. Step 2: Convert to fraction form
   1,868.32/2,796.72 = 1,434.88/x
3. Step 3: Cross multiply
   1,868.32x = 2,796.72 × 1,434.88
4. Step 4: Simplify right side
   1,868.32x = 4,012,957.59
5. Step 5: Solve for x
   x = 4,012,957.59/1,868.32
6. Step 6: Final answer
   x = 2,147.90