Finding the Fourth Proportional to 1,669.32, 2,303.82 and 1,081.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,669.32 : 2,303.82 = 1,081.53 : x
2. Step 2: Convert to fraction form
   1,669.32/2,303.82 = 1,081.53/x
3. Step 3: Cross multiply
   1,669.32x = 2,303.82 × 1,081.53
4. Step 4: Simplify right side
   1,669.32x = 2,491,650.44
5. Step 5: Solve for x
   x = 2,491,650.44/1,669.32
6. Step 6: Final answer
   x = 1,492.61