Finding the Fourth Proportional to 1,870.72, 2,581.62 and 1,074.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.72 : 2,581.62 = 1,074.18 : x
2. Step 2: Convert to fraction form
   1,870.72/2,581.62 = 1,074.18/x
3. Step 3: Cross multiply
   1,870.72x = 2,581.62 × 1,074.18
4. Step 4: Simplify right side
   1,870.72x = 2,773,111.66
5. Step 5: Solve for x
   x = 2,773,111.66/1,870.72
6. Step 6: Final answer
   x = 1,482.38