Finding the Fourth Proportional to 2,538.89, 3,810.26 and 1,079.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.89 : 3,810.26 = 1,079.07 : x
2. Step 2: Convert to fraction form
   2,538.89/3,810.26 = 1,079.07/x
3. Step 3: Cross multiply
   2,538.89x = 3,810.26 × 1,079.07
4. Step 4: Simplify right side
   2,538.89x = 4,111,539.96
5. Step 5: Solve for x
   x = 4,111,539.96/2,538.89
6. Step 6: Final answer
   x = 1,619.42