Finding the Fourth Proportional to 1,705.46, 2,556.59 and 1,553.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.46 : 2,556.59 = 1,553.28 : x
2. Step 2: Convert to fraction form
   1,705.46/2,556.59 = 1,553.28/x
3. Step 3: Cross multiply
   1,705.46x = 2,556.59 × 1,553.28
4. Step 4: Simplify right side
   1,705.46x = 3,971,092.35
5. Step 5: Solve for x
   x = 3,971,092.35/1,705.46
6. Step 6: Final answer
   x = 2,328.47