Finding the Fourth Proportional to 3,617.16, 5,426.10 and 1,308.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,617.16 : 5,426.10 = 1,308.12 : x
2. Step 2: Convert to fraction form
   3,617.16/5,426.10 = 1,308.12/x
3. Step 3: Cross multiply
   3,617.16x = 5,426.10 × 1,308.12
4. Step 4: Simplify right side
   3,617.16x = 7,097,989.93
5. Step 5: Solve for x
   x = 7,097,989.93/3,617.16
6. Step 6: Final answer
   x = 1,962.31