Finding the Fourth Proportional to 2,308.94, 3,462.56 and 921.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,308.94 : 3,462.56 = 921.86 : x
2. Step 2: Convert to fraction form
   2,308.94/3,462.56 = 921.86/x
3. Step 3: Cross multiply
   2,308.94x = 3,462.56 × 921.86
4. Step 4: Simplify right side
   2,308.94x = 3,191,973.64
5. Step 5: Solve for x
   x = 3,191,973.64/2,308.94
6. Step 6: Final answer
   x = 1,382.44