Finding the Fourth Proportional to 1,825.74, 2,736.18 and 1,393.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,825.74 : 2,736.18 = 1,393.20 : x
2. Step 2: Convert to fraction form
   1,825.74/2,736.18 = 1,393.20/x
3. Step 3: Cross multiply
   1,825.74x = 2,736.18 × 1,393.20
4. Step 4: Simplify right side
   1,825.74x = 3,812,045.98
5. Step 5: Solve for x
   x = 3,812,045.98/1,825.74
6. Step 6: Final answer
   x = 2,087.95