Finding the Fourth Proportional to 2,762.79, 4,142.76 and 1,118.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,762.79 : 4,142.76 = 1,118.89 : x
2. Step 2: Convert to fraction form
   2,762.79/4,142.76 = 1,118.89/x
3. Step 3: Cross multiply
   2,762.79x = 4,142.76 × 1,118.89
4. Step 4: Simplify right side
   2,762.79x = 4,635,292.74
5. Step 5: Solve for x
   x = 4,635,292.74/2,762.79
6. Step 6: Final answer
   x = 1,677.76