Finding the Fourth Proportional to 1,806.16, 2,710.72 and 940.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.16 : 2,710.72 = 940.72 : x
2. Step 2: Convert to fraction form
   1,806.16/2,710.72 = 940.72/x
3. Step 3: Cross multiply
   1,806.16x = 2,710.72 × 940.72
4. Step 4: Simplify right side
   1,806.16x = 2,550,028.52
5. Step 5: Solve for x
   x = 2,550,028.52/1,806.16
6. Step 6: Final answer
   x = 1,411.85