Finding the Fourth Proportional to 1,881.72, 2,596.91 and 1,251.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,881.72 : 2,596.91 = 1,251.18 : x
2. Step 2: Convert to fraction form
   1,881.72/2,596.91 = 1,251.18/x
3. Step 3: Cross multiply
   1,881.72x = 2,596.91 × 1,251.18
4. Step 4: Simplify right side
   1,881.72x = 3,249,195.60
5. Step 5: Solve for x
   x = 3,249,195.60/1,881.72
6. Step 6: Final answer
   x = 1,726.72