Finding the Fourth Proportional to 1,870.96, 2,581.74 and 1,085.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.96 : 2,581.74 = 1,085.26 : x
2. Step 2: Convert to fraction form
   1,870.96/2,581.74 = 1,085.26/x
3. Step 3: Cross multiply
   1,870.96x = 2,581.74 × 1,085.26
4. Step 4: Simplify right side
   1,870.96x = 2,801,859.15
5. Step 5: Solve for x
   x = 2,801,859.15/1,870.96
6. Step 6: Final answer
   x = 1,497.55