Finding the Fourth Proportional to 2,124.17, 2,931.48 and 1,328.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,124.17 : 2,931.48 = 1,328.00 : x
2. Step 2: Convert to fraction form
   2,124.17/2,931.48 = 1,328.00/x
3. Step 3: Cross multiply
   2,124.17x = 2,931.48 × 1,328.00
4. Step 4: Simplify right side
   2,124.17x = 3,892,990.78
5. Step 5: Solve for x
   x = 3,892,990.78/2,124.17
6. Step 6: Final answer
   x = 1,832.71