Finding the Fourth Proportional to 1,471.72, 2,196.20 and 1,308.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,471.72 : 2,196.20 = 1,308.10 : x
2. Step 2: Convert to fraction form
   1,471.72/2,196.20 = 1,308.10/x
3. Step 3: Cross multiply
   1,471.72x = 2,196.20 × 1,308.10
4. Step 4: Simplify right side
   1,471.72x = 2,872,849.22
5. Step 5: Solve for x
   x = 2,872,849.22/1,471.72
6. Step 6: Final answer
   x = 1,952.04