Finding the Fourth Proportional to 2,986.52, 4,480.18 and 1,038.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,986.52 : 4,480.18 = 1,038.47 : x
2. Step 2: Convert to fraction form
   2,986.52/4,480.18 = 1,038.47/x
3. Step 3: Cross multiply
   2,986.52x = 4,480.18 × 1,038.47
4. Step 4: Simplify right side
   2,986.52x = 4,652,507.53
5. Step 5: Solve for x
   x = 4,652,507.53/2,986.52
6. Step 6: Final answer
   x = 1,557.84