Finding the Fourth Proportional to 1,047.15, 1,567.71 and 1,012.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.15 : 1,567.71 = 1,012.59 : x
2. Step 2: Convert to fraction form
   1,047.15/1,567.71 = 1,012.59/x
3. Step 3: Cross multiply
   1,047.15x = 1,567.71 × 1,012.59
4. Step 4: Simplify right side
   1,047.15x = 1,587,447.47
5. Step 5: Solve for x
   x = 1,587,447.47/1,047.15
6. Step 6: Final answer
   x = 1,515.97