Finding the Fourth Proportional to 1,250.91, 1,716.73 and 1,151.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,250.91 : 1,716.73 = 1,151.55 : x
2. Step 2: Convert to fraction form
   1,250.91/1,716.73 = 1,151.55/x
3. Step 3: Cross multiply
   1,250.91x = 1,716.73 × 1,151.55
4. Step 4: Simplify right side
   1,250.91x = 1,976,897.55
5. Step 5: Solve for x
   x = 1,976,897.55/1,250.91
6. Step 6: Final answer
   x = 1,580.37