Finding the Fourth Proportional to 7,017.64, 10,526.39 and 2,086.86

Step by Step Solution

1. Step 1: Write the proportion equation
   7,017.64 : 10,526.39 = 2,086.86 : x
2. Step 2: Convert to fraction form
   7,017.64/10,526.39 = 2,086.86/x
3. Step 3: Cross multiply
   7,017.64x = 10,526.39 × 2,086.86
4. Step 4: Simplify right side
   7,017.64x = 21,967,139.10
5. Step 5: Solve for x
   x = 21,967,139.10/7,017.64
6. Step 6: Final answer
   x = 3,130.28