Finding the Fourth Proportional to 1,046.69, 1,558.78 and 983.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.69 : 1,558.78 = 983.81 : x
2. Step 2: Convert to fraction form
   1,046.69/1,558.78 = 983.81/x
3. Step 3: Cross multiply
   1,046.69x = 1,558.78 × 983.81
4. Step 4: Simplify right side
   1,046.69x = 1,533,544.79
5. Step 5: Solve for x
   x = 1,533,544.79/1,046.69
6. Step 6: Final answer
   x = 1,465.14