Finding the Fourth Proportional to 2,086.80, 3,126.24 and 1,113.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.80 : 3,126.24 = 1,113.36 : x
2. Step 2: Convert to fraction form
   2,086.80/3,126.24 = 1,113.36/x
3. Step 3: Cross multiply
   2,086.80x = 3,126.24 × 1,113.36
4. Step 4: Simplify right side
   2,086.80x = 3,480,630.57
5. Step 5: Solve for x
   x = 3,480,630.57/2,086.80
6. Step 6: Final answer
   x = 1,667.93