Finding the Fourth Proportional to 2,298.90, 3,447.09 and 910.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.90 : 3,447.09 = 910.83 : x
2. Step 2: Convert to fraction form
   2,298.90/3,447.09 = 910.83/x
3. Step 3: Cross multiply
   2,298.90x = 3,447.09 × 910.83
4. Step 4: Simplify right side
   2,298.90x = 3,139,712.98
5. Step 5: Solve for x
   x = 3,139,712.98/2,298.90
6. Step 6: Final answer
   x = 1,365.75