Finding the Fourth Proportional to 2,985.47, 4,478.25 and 1,037.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,985.47 : 4,478.25 = 1,037.72 : x
2. Step 2: Convert to fraction form
   2,985.47/4,478.25 = 1,037.72/x
3. Step 3: Cross multiply
   2,985.47x = 4,478.25 × 1,037.72
4. Step 4: Simplify right side
   2,985.47x = 4,647,169.59
5. Step 5: Solve for x
   x = 4,647,169.59/2,985.47
6. Step 6: Final answer
   x = 1,556.60