Finding the Fourth Proportional to 2,116.44, 2,920.73 and 1,277.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.44 : 2,920.73 = 1,277.15 : x
2. Step 2: Convert to fraction form
   2,116.44/2,920.73 = 1,277.15/x
3. Step 3: Cross multiply
   2,116.44x = 2,920.73 × 1,277.15
4. Step 4: Simplify right side
   2,116.44x = 3,730,189.33
5. Step 5: Solve for x
   x = 3,730,189.33/2,116.44
6. Step 6: Final answer
   x = 1,762.48