Finding the Fourth Proportional to 1,868.84, 2,803.35 and 714.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,868.84 : 2,803.35 = 714.50 : x
2. Step 2: Convert to fraction form
   1,868.84/2,803.35 = 714.50/x
3. Step 3: Cross multiply
   1,868.84x = 2,803.35 × 714.50
4. Step 4: Simplify right side
   1,868.84x = 2,002,993.58
5. Step 5: Solve for x
   x = 2,002,993.58/1,868.84
6. Step 6: Final answer
   x = 1,071.78