Finding the Fourth Proportional to 2,492.39, 3,739.94 and 2,100.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,492.39 : 3,739.94 = 2,100.56 : x
2. Step 2: Convert to fraction form
   2,492.39/3,739.94 = 2,100.56/x
3. Step 3: Cross multiply
   2,492.39x = 3,739.94 × 2,100.56
4. Step 4: Simplify right side
   2,492.39x = 7,855,939.16
5. Step 5: Solve for x
   x = 7,855,939.16/2,492.39
6. Step 6: Final answer
   x = 3,151.98