Finding the Fourth Proportional to 2,152.96, 3,226.56 and 1,330.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.96 : 3,226.56 = 1,330.24 : x
2. Step 2: Convert to fraction form
   2,152.96/3,226.56 = 1,330.24/x
3. Step 3: Cross multiply
   2,152.96x = 3,226.56 × 1,330.24
4. Step 4: Simplify right side
   2,152.96x = 4,292,099.17
5. Step 5: Solve for x
   x = 4,292,099.17/2,152.96
6. Step 6: Final answer
   x = 1,993.58