Finding the Fourth Proportional to 2,492.61, 3,734.12 and 1,393.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,492.61 : 3,734.12 = 1,393.64 : x
2. Step 2: Convert to fraction form
   2,492.61/3,734.12 = 1,393.64/x
3. Step 3: Cross multiply
   2,492.61x = 3,734.12 × 1,393.64
4. Step 4: Simplify right side
   2,492.61x = 5,204,017.81
5. Step 5: Solve for x
   x = 5,204,017.81/2,492.61
6. Step 6: Final answer
   x = 2,087.78