Finding the Fourth Proportional to 2,290.33, 3,157.71 and 1,870.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.33 : 3,157.71 = 1,870.24 : x
2. Step 2: Convert to fraction form
   2,290.33/3,157.71 = 1,870.24/x
3. Step 3: Cross multiply
   2,290.33x = 3,157.71 × 1,870.24
4. Step 4: Simplify right side
   2,290.33x = 5,905,675.55
5. Step 5: Solve for x
   x = 5,905,675.55/2,290.33
6. Step 6: Final answer
   x = 2,578.53