Finding the Fourth Proportional to 1,784.78, 2,678.32 and 963.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,784.78 : 2,678.32 = 963.29 : x
2. Step 2: Convert to fraction form
   1,784.78/2,678.32 = 963.29/x
3. Step 3: Cross multiply
   1,784.78x = 2,678.32 × 963.29
4. Step 4: Simplify right side
   1,784.78x = 2,580,001.35
5. Step 5: Solve for x
   x = 2,580,001.35/1,784.78
6. Step 6: Final answer
   x = 1,445.55