Finding the Fourth Proportional to 1,680.32, 2,317.68 and 1,050.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680.32 : 2,317.68 = 1,050.16 : x
2. Step 2: Convert to fraction form
   1,680.32/2,317.68 = 1,050.16/x
3. Step 3: Cross multiply
   1,680.32x = 2,317.68 × 1,050.16
4. Step 4: Simplify right side
   1,680.32x = 2,433,934.83
5. Step 5: Solve for x
   x = 2,433,934.83/1,680.32
6. Step 6: Final answer
   x = 1,448.49