Finding the Fourth Proportional to 3,462.90, 5,196.15 and 1,515.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,462.90 : 5,196.15 = 1,515.30 : x
2. Step 2: Convert to fraction form
   3,462.90/5,196.15 = 1,515.30/x
3. Step 3: Cross multiply
   3,462.90x = 5,196.15 × 1,515.30
4. Step 4: Simplify right side
   3,462.90x = 7,873,726.10
5. Step 5: Solve for x
   x = 7,873,726.10/3,462.90
6. Step 6: Final answer
   x = 2,273.74