Finding the Fourth Proportional to 2,866.72, 4,298.36 and 1,385.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.72 : 4,298.36 = 1,385.04 : x
2. Step 2: Convert to fraction form
   2,866.72/4,298.36 = 1,385.04/x
3. Step 3: Cross multiply
   2,866.72x = 4,298.36 × 1,385.04
4. Step 4: Simplify right side
   2,866.72x = 5,953,400.53
5. Step 5: Solve for x
   x = 5,953,400.53/2,866.72
6. Step 6: Final answer
   x = 2,076.73