Finding the Fourth Proportional to 1,870.84, 2,806.18 and 716.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.84 : 2,806.18 = 716.52 : x
2. Step 2: Convert to fraction form
   1,870.84/2,806.18 = 716.52/x
3. Step 3: Cross multiply
   1,870.84x = 2,806.18 × 716.52
4. Step 4: Simplify right side
   1,870.84x = 2,010,684.09
5. Step 5: Solve for x
   x = 2,010,684.09/1,870.84
6. Step 6: Final answer
   x = 1,074.75