Finding the Fourth Proportional to 2,864.87, 4,298.54 and 1,111.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,864.87 : 4,298.54 = 1,111.08 : x
2. Step 2: Convert to fraction form
   2,864.87/4,298.54 = 1,111.08/x
3. Step 3: Cross multiply
   2,864.87x = 4,298.54 × 1,111.08
4. Step 4: Simplify right side
   2,864.87x = 4,776,016.27
5. Step 5: Solve for x
   x = 4,776,016.27/2,864.87
6. Step 6: Final answer
   x = 1,667.10