Finding the Fourth Proportional to 1,186.79, 1,637.83 and 662.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,186.79 : 1,637.83 = 662.82 : x
2. Step 2: Convert to fraction form
   1,186.79/1,637.83 = 662.82/x
3. Step 3: Cross multiply
   1,186.79x = 1,637.83 × 662.82
4. Step 4: Simplify right side
   1,186.79x = 1,085,581.17
5. Step 5: Solve for x
   x = 1,085,581.17/1,186.79
6. Step 6: Final answer
   x = 914.72