Finding the Fourth Proportional to 1,523.53, 2,102.82 and 1,081.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,523.53 : 2,102.82 = 1,081.57 : x
2. Step 2: Convert to fraction form
   1,523.53/2,102.82 = 1,081.57/x
3. Step 3: Cross multiply
   1,523.53x = 2,102.82 × 1,081.57
4. Step 4: Simplify right side
   1,523.53x = 2,274,336.51
5. Step 5: Solve for x
   x = 2,274,336.51/1,523.53
6. Step 6: Final answer
   x = 1,492.81