Finding the Fourth Proportional to 2,572.52, 3,860.51 and 1,111.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.52 : 3,860.51 = 1,111.82 : x
2. Step 2: Convert to fraction form
   2,572.52/3,860.51 = 1,111.82/x
3. Step 3: Cross multiply
   2,572.52x = 3,860.51 × 1,111.82
4. Step 4: Simplify right side
   2,572.52x = 4,292,167.37
5. Step 5: Solve for x
   x = 4,292,167.37/2,572.52
6. Step 6: Final answer
   x = 1,668.47