Finding the Fourth Proportional to 3,513.82, 5,258.55 and 2,126.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,513.82 : 5,258.55 = 2,126.32 : x
2. Step 2: Convert to fraction form
   3,513.82/5,258.55 = 2,126.32/x
3. Step 3: Cross multiply
   3,513.82x = 5,258.55 × 2,126.32
4. Step 4: Simplify right side
   3,513.82x = 11,181,360.04
5. Step 5: Solve for x
   x = 11,181,360.04/3,513.82
6. Step 6: Final answer
   x = 3,182.11