Finding the Fourth Proportional to 2,353.81, 3,530.34 and 892.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,353.81 : 3,530.34 = 892.61 : x
2. Step 2: Convert to fraction form
   2,353.81/3,530.34 = 892.61/x
3. Step 3: Cross multiply
   2,353.81x = 3,530.34 × 892.61
4. Step 4: Simplify right side
   2,353.81x = 3,151,212.32
5. Step 5: Solve for x
   x = 3,151,212.32/2,353.81
6. Step 6: Final answer
   x = 1,338.77