Finding the Fourth Proportional to 2,797.86, 3,861.06 and 1,538.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,797.86 : 3,861.06 = 1,538.89 : x
2. Step 2: Convert to fraction form
   2,797.86/3,861.06 = 1,538.89/x
3. Step 3: Cross multiply
   2,797.86x = 3,861.06 × 1,538.89
4. Step 4: Simplify right side
   2,797.86x = 5,941,731.20
5. Step 5: Solve for x
   x = 5,941,731.20/2,797.86
6. Step 6: Final answer
   x = 2,123.67