Finding the Fourth Proportional to 2,007.50, 2,770.92 and 1,261.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.50 : 2,770.92 = 1,261.71 : x
2. Step 2: Convert to fraction form
   2,007.50/2,770.92 = 1,261.71/x
3. Step 3: Cross multiply
   2,007.50x = 2,770.92 × 1,261.71
4. Step 4: Simplify right side
   2,007.50x = 3,496,097.47
5. Step 5: Solve for x
   x = 3,496,097.47/2,007.50
6. Step 6: Final answer
   x = 1,741.52