Finding the Fourth Proportional to 1,870.20, 2,806.02 and 716.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.20 : 2,806.02 = 716.04 : x
2. Step 2: Convert to fraction form
   1,870.20/2,806.02 = 716.04/x
3. Step 3: Cross multiply
   1,870.20x = 2,806.02 × 716.04
4. Step 4: Simplify right side
   1,870.20x = 2,009,222.56
5. Step 5: Solve for x
   x = 2,009,222.56/1,870.20
6. Step 6: Final answer
   x = 1,074.34