Finding the Fourth Proportional to 1,932.76, 2,664.72 and 1,578.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,932.76 : 2,664.72 = 1,578.34 : x
2. Step 2: Convert to fraction form
   1,932.76/2,664.72 = 1,578.34/x
3. Step 3: Cross multiply
   1,932.76x = 2,664.72 × 1,578.34
4. Step 4: Simplify right side
   1,932.76x = 4,205,834.16
5. Step 5: Solve for x
   x = 4,205,834.16/1,932.76
6. Step 6: Final answer
   x = 2,176.08