Finding the Fourth Proportional to 1,867.32, 2,577.46 and 1,081.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,867.32 : 2,577.46 = 1,081.72 : x
2. Step 2: Convert to fraction form
   1,867.32/2,577.46 = 1,081.72/x
3. Step 3: Cross multiply
   1,867.32x = 2,577.46 × 1,081.72
4. Step 4: Simplify right side
   1,867.32x = 2,788,090.03
5. Step 5: Solve for x
   x = 2,788,090.03/1,867.32
6. Step 6: Final answer
   x = 1,493.10