Finding the Fourth Proportional to 2,381.30, 3,572.51 and 993.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.30 : 3,572.51 = 993.86 : x
2. Step 2: Convert to fraction form
   2,381.30/3,572.51 = 993.86/x
3. Step 3: Cross multiply
   2,381.30x = 3,572.51 × 993.86
4. Step 4: Simplify right side
   2,381.30x = 3,550,586.20
5. Step 5: Solve for x
   x = 3,550,586.20/2,381.30
6. Step 6: Final answer
   x = 1,491.03