Finding the Fourth Proportional to 2,390.62, 3,581.53 and 1,523.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.62 : 3,581.53 = 1,523.10 : x
2. Step 2: Convert to fraction form
   2,390.62/3,581.53 = 1,523.10/x
3. Step 3: Cross multiply
   2,390.62x = 3,581.53 × 1,523.10
4. Step 4: Simplify right side
   2,390.62x = 5,455,028.34
5. Step 5: Solve for x
   x = 5,455,028.34/2,390.62
6. Step 6: Final answer
   x = 2,281.85