Finding the Fourth Proportional to 1,849.78, 2,552.07 and 1,131.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,849.78 : 2,552.07 = 1,131.72 : x
2. Step 2: Convert to fraction form
   1,849.78/2,552.07 = 1,131.72/x
3. Step 3: Cross multiply
   1,849.78x = 2,552.07 × 1,131.72
4. Step 4: Simplify right side
   1,849.78x = 2,888,228.66
5. Step 5: Solve for x
   x = 2,888,228.66/1,849.78
6. Step 6: Final answer
   x = 1,561.39