Finding the Fourth Proportional to 2,298.65, 3,448.37 and 911.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.65 : 3,448.37 = 911.99 : x
2. Step 2: Convert to fraction form
   2,298.65/3,448.37 = 911.99/x
3. Step 3: Cross multiply
   2,298.65x = 3,448.37 × 911.99
4. Step 4: Simplify right side
   2,298.65x = 3,144,889.86
5. Step 5: Solve for x
   x = 3,144,889.86/2,298.65
6. Step 6: Final answer
   x = 1,368.15