Finding the Fourth Proportional to 2,245.10, 3,369.18 and 784.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,245.10 : 3,369.18 = 784.25 : x
2. Step 2: Convert to fraction form
   2,245.10/3,369.18 = 784.25/x
3. Step 3: Cross multiply
   2,245.10x = 3,369.18 × 784.25
4. Step 4: Simplify right side
   2,245.10x = 2,642,262.57
5. Step 5: Solve for x
   x = 2,642,262.57/2,245.10
6. Step 6: Final answer
   x = 1,176.90