Finding the Fourth Proportional to 1,672.52, 2,308.04 and 926.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.52 : 2,308.04 = 926.47 : x
2. Step 2: Convert to fraction form
   1,672.52/2,308.04 = 926.47/x
3. Step 3: Cross multiply
   1,672.52x = 2,308.04 × 926.47
4. Step 4: Simplify right side
   1,672.52x = 2,138,343.25
5. Step 5: Solve for x
   x = 2,138,343.25/1,672.52
6. Step 6: Final answer
   x = 1,278.52