Finding the Fourth Proportional to 2,774.89, 3,826.47 and 2,145.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,774.89 : 3,826.47 = 2,145.52 : x
2. Step 2: Convert to fraction form
   2,774.89/3,826.47 = 2,145.52/x
3. Step 3: Cross multiply
   2,774.89x = 3,826.47 × 2,145.52
4. Step 4: Simplify right side
   2,774.89x = 8,209,780.74
5. Step 5: Solve for x
   x = 8,209,780.74/2,774.89
6. Step 6: Final answer
   x = 2,958.60