Finding the Fourth Proportional to 1,705.82, 2,557.02 and 1,090.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,705.82 : 2,557.02 = 1,090.22 : x
2. Step 2: Convert to fraction form
   1,705.82/2,557.02 = 1,090.22/x
3. Step 3: Cross multiply
   1,705.82x = 2,557.02 × 1,090.22
4. Step 4: Simplify right side
   1,705.82x = 2,787,714.34
5. Step 5: Solve for x
   x = 2,787,714.34/1,705.82
6. Step 6: Final answer
   x = 1,634.24