Finding the Fourth Proportional to 2,642.17, 3,645.74 and 1,523.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,642.17 : 3,645.74 = 1,523.15 : x
2. Step 2: Convert to fraction form
   2,642.17/3,645.74 = 1,523.15/x
3. Step 3: Cross multiply
   2,642.17x = 3,645.74 × 1,523.15
4. Step 4: Simplify right side
   2,642.17x = 5,553,001.27
5. Step 5: Solve for x
   x = 5,553,001.27/2,642.17
6. Step 6: Final answer
   x = 2,101.69