Finding the Fourth Proportional to 2,719.89, 4,079.79 and 1,075.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,719.89 : 4,079.79 = 1,075.50 : x
2. Step 2: Convert to fraction form
   2,719.89/4,079.79 = 1,075.50/x
3. Step 3: Cross multiply
   2,719.89x = 4,079.79 × 1,075.50
4. Step 4: Simplify right side
   2,719.89x = 4,387,814.15
5. Step 5: Solve for x
   x = 4,387,814.15/2,719.89
6. Step 6: Final answer
   x = 1,613.23