Finding the Fourth Proportional to 1,721.46, 2,375.76 and 975.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.46 : 2,375.76 = 975.42 : x
2. Step 2: Convert to fraction form
   1,721.46/2,375.76 = 975.42/x
3. Step 3: Cross multiply
   1,721.46x = 2,375.76 × 975.42
4. Step 4: Simplify right side
   1,721.46x = 2,317,363.82
5. Step 5: Solve for x
   x = 2,317,363.82/1,721.46
6. Step 6: Final answer
   x = 1,346.16