Finding the Fourth Proportional to 1,553.96, 2,329.94 and 1,005.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,553.96 : 2,329.94 = 1,005.56 : x
2. Step 2: Convert to fraction form
   1,553.96/2,329.94 = 1,005.56/x
3. Step 3: Cross multiply
   1,553.96x = 2,329.94 × 1,005.56
4. Step 4: Simplify right side
   1,553.96x = 2,342,894.47
5. Step 5: Solve for x
   x = 2,342,894.47/1,553.96
6. Step 6: Final answer
   x = 1,507.69