Finding the Fourth Proportional to 2,539.69, 3,811.04 and 1,153.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,539.69 : 3,811.04 = 1,153.01 : x
2. Step 2: Convert to fraction form
   2,539.69/3,811.04 = 1,153.01/x
3. Step 3: Cross multiply
   2,539.69x = 3,811.04 × 1,153.01
4. Step 4: Simplify right side
   2,539.69x = 4,394,142.41
5. Step 5: Solve for x
   x = 4,394,142.41/2,539.69
6. Step 6: Final answer
   x = 1,730.19