Finding the Fourth Proportional to 2,381.86, 3,572.61 and 994.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.86 : 3,572.61 = 994.69 : x
2. Step 2: Convert to fraction form
   2,381.86/3,572.61 = 994.69/x
3. Step 3: Cross multiply
   2,381.86x = 3,572.61 × 994.69
4. Step 4: Simplify right side
   2,381.86x = 3,553,639.44
5. Step 5: Solve for x
   x = 3,553,639.44/2,381.86
6. Step 6: Final answer
   x = 1,491.96