Finding the Fourth Proportional to 1,146.05, 1,717.83 and 561.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.05 : 1,717.83 = 561.46 : x
2. Step 2: Convert to fraction form
   1,146.05/1,717.83 = 561.46/x
3. Step 3: Cross multiply
   1,146.05x = 1,717.83 × 561.46
4. Step 4: Simplify right side
   1,146.05x = 964,488.51
5. Step 5: Solve for x
   x = 964,488.51/1,146.05
6. Step 6: Final answer
   x = 841.58