Finding the Fourth Proportional to 2,588.61, 3,572.30 and 1,540.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,588.61 : 3,572.30 = 1,540.71 : x
2. Step 2: Convert to fraction form
   2,588.61/3,572.30 = 1,540.71/x
3. Step 3: Cross multiply
   2,588.61x = 3,572.30 × 1,540.71
4. Step 4: Simplify right side
   2,588.61x = 5,503,870.63
5. Step 5: Solve for x
   x = 5,503,870.63/2,588.61
6. Step 6: Final answer
   x = 2,126.19