Finding the Fourth Proportional to 2,014.64, 2,780.35 and 1,118.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.64 : 2,780.35 = 1,118.42 : x
2. Step 2: Convert to fraction form
   2,014.64/2,780.35 = 1,118.42/x
3. Step 3: Cross multiply
   2,014.64x = 2,780.35 × 1,118.42
4. Step 4: Simplify right side
   2,014.64x = 3,109,599.05
5. Step 5: Solve for x
   x = 3,109,599.05/2,014.64
6. Step 6: Final answer
   x = 1,543.50