Finding the Fourth Proportional to 2,377.84, 3,567.41 and 991.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.84 : 3,567.41 = 991.83 : x
2. Step 2: Convert to fraction form
   2,377.84/3,567.41 = 991.83/x
3. Step 3: Cross multiply
   2,377.84x = 3,567.41 × 991.83
4. Step 4: Simplify right side
   2,377.84x = 3,538,248.90
5. Step 5: Solve for x
   x = 3,538,248.90/2,377.84
6. Step 6: Final answer
   x = 1,488.01