Finding the Fourth Proportional to 2,854.32, 4,277.94 and 1,209

Step by Step Solution

1. Step 1: Write the proportion equation
   2,854.32 : 4,277.94 = 1,209 : x
2. Step 2: Convert to fraction form
   2,854.32/4,277.94 = 1,209/x
3. Step 3: Cross multiply
   2,854.32x = 4,277.94 × 1,209
4. Step 4: Simplify right side
   2,854.32x = 5,172,029.46
5. Step 5: Solve for x
   x = 5,172,029.46/2,854.32
6. Step 6: Final answer
   x = 1,812.00