Finding the Fourth Proportional to 1,519.01, 2,279.93 and 789.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.01 : 2,279.93 = 789.10 : x
2. Step 2: Convert to fraction form
   1,519.01/2,279.93 = 789.10/x
3. Step 3: Cross multiply
   1,519.01x = 2,279.93 × 789.10
4. Step 4: Simplify right side
   1,519.01x = 1,799,092.76
5. Step 5: Solve for x
   x = 1,799,092.76/1,519.01
6. Step 6: Final answer
   x = 1,184.39