Finding the Fourth Proportional to 1,672.72, 2,505.56 and 848.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.72 : 2,505.56 = 848.48 : x
2. Step 2: Convert to fraction form
   1,672.72/2,505.56 = 848.48/x
3. Step 3: Cross multiply
   1,672.72x = 2,505.56 × 848.48
4. Step 4: Simplify right side
   1,672.72x = 2,125,917.55
5. Step 5: Solve for x
   x = 2,125,917.55/1,672.72
6. Step 6: Final answer
   x = 1,270.93