Finding the Fourth Proportional to 1,806.42, 2,707.90 and 710.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.42 : 2,707.90 = 710.42 : x
2. Step 2: Convert to fraction form
   1,806.42/2,707.90 = 710.42/x
3. Step 3: Cross multiply
   1,806.42x = 2,707.90 × 710.42
4. Step 4: Simplify right side
   1,806.42x = 1,923,746.32
5. Step 5: Solve for x
   x = 1,923,746.32/1,806.42
6. Step 6: Final answer
   x = 1,064.95