Finding the Fourth Proportional to 1,721.34, 2,374.34 and 1,182.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,721.34 : 2,374.34 = 1,182.72 : x
2. Step 2: Convert to fraction form
   1,721.34/2,374.34 = 1,182.72/x
3. Step 3: Cross multiply
   1,721.34x = 2,374.34 × 1,182.72
4. Step 4: Simplify right side
   1,721.34x = 2,808,180.71
5. Step 5: Solve for x
   x = 2,808,180.71/1,721.34
6. Step 6: Final answer
   x = 1,631.39