Finding the Fourth Proportional to 1,722.71, 2,377.17 and 976.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.71 : 2,377.17 = 976.52 : x
2. Step 2: Convert to fraction form
   1,722.71/2,377.17 = 976.52/x
3. Step 3: Cross multiply
   1,722.71x = 2,377.17 × 976.52
4. Step 4: Simplify right side
   1,722.71x = 2,321,354.05
5. Step 5: Solve for x
   x = 2,321,354.05/1,722.71
6. Step 6: Final answer
   x = 1,347.50