Finding the Fourth Proportional to 2,790.45, 3,848.85 and 1,845.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.45 : 3,848.85 = 1,845.72 : x
2. Step 2: Convert to fraction form
   2,790.45/3,848.85 = 1,845.72/x
3. Step 3: Cross multiply
   2,790.45x = 3,848.85 × 1,845.72
4. Step 4: Simplify right side
   2,790.45x = 7,103,899.42
5. Step 5: Solve for x
   x = 7,103,899.42/2,790.45
6. Step 6: Final answer
   x = 2,545.79