Finding the Fourth Proportional to 1,364.86, 1,883.40 and 885.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,364.86 : 1,883.40 = 885.46 : x
2. Step 2: Convert to fraction form
   1,364.86/1,883.40 = 885.46/x
3. Step 3: Cross multiply
   1,364.86x = 1,883.40 × 885.46
4. Step 4: Simplify right side
   1,364.86x = 1,667,675.36
5. Step 5: Solve for x
   x = 1,667,675.36/1,364.86
6. Step 6: Final answer
   x = 1,221.87