Finding the Fourth Proportional to 1,672.50, 2,307.96 and 926.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672.50 : 2,307.96 = 926.52 : x
2. Step 2: Convert to fraction form
   1,672.50/2,307.96 = 926.52/x
3. Step 3: Cross multiply
   1,672.50x = 2,307.96 × 926.52
4. Step 4: Simplify right side
   1,672.50x = 2,138,371.10
5. Step 5: Solve for x
   x = 2,138,371.10/1,672.50
6. Step 6: Final answer
   x = 1,278.55