Finding the Fourth Proportional to 1,978.29, 2,965.78 and 745.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.29 : 2,965.78 = 745.02 : x
2. Step 2: Convert to fraction form
   1,978.29/2,965.78 = 745.02/x
3. Step 3: Cross multiply
   1,978.29x = 2,965.78 × 745.02
4. Step 4: Simplify right side
   1,978.29x = 2,209,565.42
5. Step 5: Solve for x
   x = 2,209,565.42/1,978.29
6. Step 6: Final answer
   x = 1,116.91