Finding the Fourth Proportional to 1,646.50, 2,272.17 and 948.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646.50 : 2,272.17 = 948.10 : x
2. Step 2: Convert to fraction form
   1,646.50/2,272.17 = 948.10/x
3. Step 3: Cross multiply
   1,646.50x = 2,272.17 × 948.10
4. Step 4: Simplify right side
   1,646.50x = 2,154,244.38
5. Step 5: Solve for x
   x = 2,154,244.38/1,646.50
6. Step 6: Final answer
   x = 1,308.38