Finding the Fourth Proportional to 2,276.67, 3,140.69 and 1,531.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276.67 : 3,140.69 = 1,531.72 : x
2. Step 2: Convert to fraction form
   2,276.67/3,140.69 = 1,531.72/x
3. Step 3: Cross multiply
   2,276.67x = 3,140.69 × 1,531.72
4. Step 4: Simplify right side
   2,276.67x = 4,810,657.69
5. Step 5: Solve for x
   x = 4,810,657.69/2,276.67
6. Step 6: Final answer
   x = 2,113.02