Finding the Fourth Proportional to 1,632.78, 2,253.12 and 969.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.78 : 2,253.12 = 969.39 : x
2. Step 2: Convert to fraction form
   1,632.78/2,253.12 = 969.39/x
3. Step 3: Cross multiply
   1,632.78x = 2,253.12 × 969.39
4. Step 4: Simplify right side
   1,632.78x = 2,184,152.00
5. Step 5: Solve for x
   x = 2,184,152.00/1,632.78
6. Step 6: Final answer
   x = 1,337.69