Finding the Fourth Proportional to 1,632.86, 2,250.69 and 1,278.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.86 : 2,250.69 = 1,278.19 : x
2. Step 2: Convert to fraction form
   1,632.86/2,250.69 = 1,278.19/x
3. Step 3: Cross multiply
   1,632.86x = 2,250.69 × 1,278.19
4. Step 4: Simplify right side
   1,632.86x = 2,876,809.45
5. Step 5: Solve for x
   x = 2,876,809.45/1,632.86
6. Step 6: Final answer
   x = 1,761.82