Finding the Fourth Proportional to 1,722.18, 2,377.40 and 1,328.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,722.18 : 2,377.40 = 1,328.52 : x
2. Step 2: Convert to fraction form
   1,722.18/2,377.40 = 1,328.52/x
3. Step 3: Cross multiply
   1,722.18x = 2,377.40 × 1,328.52
4. Step 4: Simplify right side
   1,722.18x = 3,158,416.81
5. Step 5: Solve for x
   x = 3,158,416.81/1,722.18
6. Step 6: Final answer
   x = 1,833.96