Finding the Fourth Proportional to 2,904.42, 4,356.52 and 824.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,904.42 : 4,356.52 = 824.56 : x
2. Step 2: Convert to fraction form
   2,904.42/4,356.52 = 824.56/x
3. Step 3: Cross multiply
   2,904.42x = 4,356.52 × 824.56
4. Step 4: Simplify right side
   2,904.42x = 3,592,212.13
5. Step 5: Solve for x
   x = 3,592,212.13/2,904.42
6. Step 6: Final answer
   x = 1,236.81