Finding the Fourth Proportional to 1,488.32, 2,052.16 and 963.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.32 : 2,052.16 = 963.84 : x
2. Step 2: Convert to fraction form
   1,488.32/2,052.16 = 963.84/x
3. Step 3: Cross multiply
   1,488.32x = 2,052.16 × 963.84
4. Step 4: Simplify right side
   1,488.32x = 1,977,953.89
5. Step 5: Solve for x
   x = 1,977,953.89/1,488.32
6. Step 6: Final answer
   x = 1,328.98