Finding the Fourth Proportional to 2,147.43, 2,962.85 and 1,308.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,147.43 : 2,962.85 = 1,308.16 : x
2. Step 2: Convert to fraction form
   2,147.43/2,962.85 = 1,308.16/x
3. Step 3: Cross multiply
   2,147.43x = 2,962.85 × 1,308.16
4. Step 4: Simplify right side
   2,147.43x = 3,875,881.86
5. Step 5: Solve for x
   x = 3,875,881.86/2,147.43
6. Step 6: Final answer
   x = 1,804.89