Finding the Fourth Proportional to 5,326.72, 7,985.42 and 2,204.78

Step by Step Solution

1. Step 1: Write the proportion equation
   5,326.72 : 7,985.42 = 2,204.78 : x
2. Step 2: Convert to fraction form
   5,326.72/7,985.42 = 2,204.78/x
3. Step 3: Cross multiply
   5,326.72x = 7,985.42 × 2,204.78
4. Step 4: Simplify right side
   5,326.72x = 17,606,094.31
5. Step 5: Solve for x
   x = 17,606,094.31/5,326.72
6. Step 6: Final answer
   x = 3,305.24