Finding the Fourth Proportional to 1,523.02, 2,105.31 and 1,358.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,523.02 : 2,105.31 = 1,358.86 : x
2. Step 2: Convert to fraction form
   1,523.02/2,105.31 = 1,358.86/x
3. Step 3: Cross multiply
   1,523.02x = 2,105.31 × 1,358.86
4. Step 4: Simplify right side
   1,523.02x = 2,860,821.55
5. Step 5: Solve for x
   x = 2,860,821.55/1,523.02
6. Step 6: Final answer
   x = 1,878.39