Finding the Fourth Proportional to 1,672.91, 2,307.22 and 1,254.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.91 : 2,307.22 = 1,254.25 : x
2. Step 2: Convert to fraction form
   1,672.91/2,307.22 = 1,254.25/x
3. Step 3: Cross multiply
   1,672.91x = 2,307.22 × 1,254.25
4. Step 4: Simplify right side
   1,672.91x = 2,893,830.69
5. Step 5: Solve for x
   x = 2,893,830.69/1,672.91
6. Step 6: Final answer
   x = 1,729.82