Finding the Fourth Proportional to 1,366.62, 1,886.80 and 946.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366.62 : 1,886.80 = 946.82 : x
2. Step 2: Convert to fraction form
   1,366.62/1,886.80 = 946.82/x
3. Step 3: Cross multiply
   1,366.62x = 1,886.80 × 946.82
4. Step 4: Simplify right side
   1,366.62x = 1,786,462.33
5. Step 5: Solve for x
   x = 1,786,462.33/1,366.62
6. Step 6: Final answer
   x = 1,307.21