Finding the Fourth Proportional to 2,492.78, 3,436.22 and 1,607.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,492.78 : 3,436.22 = 1,607.45 : x
2. Step 2: Convert to fraction form
   2,492.78/3,436.22 = 1,607.45/x
3. Step 3: Cross multiply
   2,492.78x = 3,436.22 × 1,607.45
4. Step 4: Simplify right side
   2,492.78x = 5,523,538.68
5. Step 5: Solve for x
   x = 5,523,538.68/2,492.78
6. Step 6: Final answer
   x = 2,215.82