Finding the Fourth Proportional to 1,552.84, 2,142.20 and 1,081.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.84 : 2,142.20 = 1,081.89 : x
2. Step 2: Convert to fraction form
   1,552.84/2,142.20 = 1,081.89/x
3. Step 3: Cross multiply
   1,552.84x = 2,142.20 × 1,081.89
4. Step 4: Simplify right side
   1,552.84x = 2,317,627.46
5. Step 5: Solve for x
   x = 2,317,627.46/1,552.84
6. Step 6: Final answer
   x = 1,492.51