Finding the Fourth Proportional to 2,573.61, 3,857.13 and 1,111.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.61 : 3,857.13 = 1,111.29 : x
2. Step 2: Convert to fraction form
   2,573.61/3,857.13 = 1,111.29/x
3. Step 3: Cross multiply
   2,573.61x = 3,857.13 × 1,111.29
4. Step 4: Simplify right side
   2,573.61x = 4,286,390.00
5. Step 5: Solve for x
   x = 4,286,390.00/2,573.61
6. Step 6: Final answer
   x = 1,665.52