Finding the Fourth Proportional to 2,292.22, 3,437.47 and 905.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,292.22 : 3,437.47 = 905.10 : x
2. Step 2: Convert to fraction form
   2,292.22/3,437.47 = 905.10/x
3. Step 3: Cross multiply
   2,292.22x = 3,437.47 × 905.10
4. Step 4: Simplify right side
   2,292.22x = 3,111,254.10
5. Step 5: Solve for x
   x = 3,111,254.10/2,292.22
6. Step 6: Final answer
   x = 1,357.31