Finding the Fourth Proportional to 1,945.16, 2,915.22 and 848.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.16 : 2,915.22 = 848.06 : x
2. Step 2: Convert to fraction form
   1,945.16/2,915.22 = 848.06/x
3. Step 3: Cross multiply
   1,945.16x = 2,915.22 × 848.06
4. Step 4: Simplify right side
   1,945.16x = 2,472,281.47
5. Step 5: Solve for x
   x = 2,472,281.47/1,945.16
6. Step 6: Final answer
   x = 1,270.99