Finding the Fourth Proportional to 2,870.35, 3,959.91 and 1,875.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.35 : 3,959.91 = 1,875.26 : x
2. Step 2: Convert to fraction form
   2,870.35/3,959.91 = 1,875.26/x
3. Step 3: Cross multiply
   2,870.35x = 3,959.91 × 1,875.26
4. Step 4: Simplify right side
   2,870.35x = 7,425,870.73
5. Step 5: Solve for x
   x = 7,425,870.73/2,870.35
6. Step 6: Final answer
   x = 2,587.10