Finding the Fourth Proportional to 1,549.92, 2,322.72 and 1,320.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,549.92 : 2,322.72 = 1,320.96 : x
2. Step 2: Convert to fraction form
   1,549.92/2,322.72 = 1,320.96/x
3. Step 3: Cross multiply
   1,549.92x = 2,322.72 × 1,320.96
4. Step 4: Simplify right side
   1,549.92x = 3,068,220.21
5. Step 5: Solve for x
   x = 3,068,220.21/1,549.92
6. Step 6: Final answer
   x = 1,979.60