Finding the Fourth Proportional to 1,656.47, 2,285.99 and 948.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,656.47 : 2,285.99 = 948.42 : x
2. Step 2: Convert to fraction form
   1,656.47/2,285.99 = 948.42/x
3. Step 3: Cross multiply
   1,656.47x = 2,285.99 × 948.42
4. Step 4: Simplify right side
   1,656.47x = 2,168,073.89
5. Step 5: Solve for x
   x = 2,168,073.89/1,656.47
6. Step 6: Final answer
   x = 1,308.86