Finding the Fourth Proportional to 2,758.74, 4,138.89 and 1,116.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.74 : 4,138.89 = 1,116.45 : x
2. Step 2: Convert to fraction form
   2,758.74/4,138.89 = 1,116.45/x
3. Step 3: Cross multiply
   2,758.74x = 4,138.89 × 1,116.45
4. Step 4: Simplify right side
   2,758.74x = 4,620,837.46
5. Step 5: Solve for x
   x = 4,620,837.46/2,758.74
6. Step 6: Final answer
   x = 1,674.98