Finding the Fourth Proportional to 1,483.76, 2,222.76 and 714.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,483.76 : 2,222.76 = 714.80 : x
2. Step 2: Convert to fraction form
   1,483.76/2,222.76 = 714.80/x
3. Step 3: Cross multiply
   1,483.76x = 2,222.76 × 714.80
4. Step 4: Simplify right side
   1,483.76x = 1,588,828.85
5. Step 5: Solve for x
   x = 1,588,828.85/1,483.76
6. Step 6: Final answer
   x = 1,070.81