Finding the Fourth Proportional to 3,511.88, 5,267.72 and 1,046.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,511.88 : 5,267.72 = 1,046.72 : x
2. Step 2: Convert to fraction form
   3,511.88/5,267.72 = 1,046.72/x
3. Step 3: Cross multiply
   3,511.88x = 5,267.72 × 1,046.72
4. Step 4: Simplify right side
   3,511.88x = 5,513,827.88
5. Step 5: Solve for x
   x = 5,513,827.88/3,511.88
6. Step 6: Final answer
   x = 1,570.05