Finding the Fourth Proportional to 1,850.72, 2,774.72 and 1,120.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,850.72 : 2,774.72 = 1,120.14 : x
2. Step 2: Convert to fraction form
   1,850.72/2,774.72 = 1,120.14/x
3. Step 3: Cross multiply
   1,850.72x = 2,774.72 × 1,120.14
4. Step 4: Simplify right side
   1,850.72x = 3,108,069.26
5. Step 5: Solve for x
   x = 3,108,069.26/1,850.72
6. Step 6: Final answer
   x = 1,679.39