Finding the Fourth Proportional to 2,790.35, 4,181.94 and 1,229.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,790.35 : 4,181.94 = 1,229.34 : x
2. Step 2: Convert to fraction form
   2,790.35/4,181.94 = 1,229.34/x
3. Step 3: Cross multiply
   2,790.35x = 4,181.94 × 1,229.34
4. Step 4: Simplify right side
   2,790.35x = 5,141,026.12
5. Step 5: Solve for x
   x = 5,141,026.12/2,790.35
6. Step 6: Final answer
   x = 1,842.43