Finding the Fourth Proportional to 1,850.79, 2,770.68 and 1,118.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,850.79 : 2,770.68 = 1,118.15 : x
2. Step 2: Convert to fraction form
   1,850.79/2,770.68 = 1,118.15/x
3. Step 3: Cross multiply
   1,850.79x = 2,770.68 × 1,118.15
4. Step 4: Simplify right side
   1,850.79x = 3,098,035.84
5. Step 5: Solve for x
   x = 3,098,035.84/1,850.79
6. Step 6: Final answer
   x = 1,673.90