Finding the Fourth Proportional to 2,873.01, 4,309.71 and 1,118.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,873.01 : 4,309.71 = 1,118.55 : x
2. Step 2: Convert to fraction form
   2,873.01/4,309.71 = 1,118.55/x
3. Step 3: Cross multiply
   2,873.01x = 4,309.71 × 1,118.55
4. Step 4: Simplify right side
   2,873.01x = 4,820,626.12
5. Step 5: Solve for x
   x = 4,820,626.12/2,873.01
6. Step 6: Final answer
   x = 1,677.90