Finding the Fourth Proportional to 2,531, 3,795.78 and 1,070.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,531 : 3,795.78 = 1,070.12 : x
2. Step 2: Convert to fraction form
   2,531/3,795.78 = 1,070.12/x
3. Step 3: Cross multiply
   2,531x = 3,795.78 × 1,070.12
4. Step 4: Simplify right side
   2,531x = 4,061,940.09
5. Step 5: Solve for x
   x = 4,061,940.09/2,531
6. Step 6: Final answer
   x = 1,604.88