Finding the Fourth Proportional to 2,377.91, 3,564.41 and 992.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,377.91 : 3,564.41 = 992.05 : x
2. Step 2: Convert to fraction form
   2,377.91/3,564.41 = 992.05/x
3. Step 3: Cross multiply
   2,377.91x = 3,564.41 × 992.05
4. Step 4: Simplify right side
   2,377.91x = 3,536,059.07
5. Step 5: Solve for x
   x = 3,536,059.07/2,377.91
6. Step 6: Final answer
   x = 1,487.05