Finding the Fourth Proportional to 2,311.57, 3,182.57 and 1,870.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.57 : 3,182.57 = 1,870.93 : x
2. Step 2: Convert to fraction form
   2,311.57/3,182.57 = 1,870.93/x
3. Step 3: Cross multiply
   2,311.57x = 3,182.57 × 1,870.93
4. Step 4: Simplify right side
   2,311.57x = 5,954,349.78
5. Step 5: Solve for x
   x = 5,954,349.78/2,311.57
6. Step 6: Final answer
   x = 2,575.90