Finding the Fourth Proportional to 1,647.05, 2,272.17 and 948.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.05 : 2,272.17 = 948.02 : x
2. Step 2: Convert to fraction form
   1,647.05/2,272.17 = 948.02/x
3. Step 3: Cross multiply
   1,647.05x = 2,272.17 × 948.02
4. Step 4: Simplify right side
   1,647.05x = 2,154,071.30
5. Step 5: Solve for x
   x = 2,154,071.30/1,647.05
6. Step 6: Final answer
   x = 1,307.83