Finding the Fourth Proportional to 2,531.45, 3,796.27 and 1,215.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,531.45 : 3,796.27 = 1,215.15 : x
2. Step 2: Convert to fraction form
   2,531.45/3,796.27 = 1,215.15/x
3. Step 3: Cross multiply
   2,531.45x = 3,796.27 × 1,215.15
4. Step 4: Simplify right side
   2,531.45x = 4,613,041.57
5. Step 5: Solve for x
   x = 4,613,041.57/2,531.45
6. Step 6: Final answer
   x = 1,822.29