Finding the Fourth Proportional to 1,496.77, 2,065.20 and 858.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,496.77 : 2,065.20 = 858.42 : x
2. Step 2: Convert to fraction form
   1,496.77/2,065.20 = 858.42/x
3. Step 3: Cross multiply
   1,496.77x = 2,065.20 × 858.42
4. Step 4: Simplify right side
   1,496.77x = 1,772,798.66
5. Step 5: Solve for x
   x = 1,772,798.66/1,496.77
6. Step 6: Final answer
   x = 1,184.42