Finding the Fourth Proportional to 1,103.39, 1,654.61 and 410.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,103.39 : 1,654.61 = 410.10 : x
2. Step 2: Convert to fraction form
   1,103.39/1,654.61 = 410.10/x
3. Step 3: Cross multiply
   1,103.39x = 1,654.61 × 410.10
4. Step 4: Simplify right side
   1,103.39x = 678,553.51
5. Step 5: Solve for x
   x = 678,553.51/1,103.39
6. Step 6: Final answer
   x = 614.97