Finding the Fourth Proportional to 2,548.82, 3,822.66 and 988.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,548.82 : 3,822.66 = 988.76 : x
2. Step 2: Convert to fraction form
   2,548.82/3,822.66 = 988.76/x
3. Step 3: Cross multiply
   2,548.82x = 3,822.66 × 988.76
4. Step 4: Simplify right side
   2,548.82x = 3,779,702.86
5. Step 5: Solve for x
   x = 3,779,702.86/2,548.82
6. Step 6: Final answer
   x = 1,482.92