Finding the Fourth Proportional to 1,675.82, 2,308.29 and 1,170.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,675.82 : 2,308.29 = 1,170.78 : x
2. Step 2: Convert to fraction form
   1,675.82/2,308.29 = 1,170.78/x
3. Step 3: Cross multiply
   1,675.82x = 2,308.29 × 1,170.78
4. Step 4: Simplify right side
   1,675.82x = 2,702,499.77
5. Step 5: Solve for x
   x = 2,702,499.77/1,675.82
6. Step 6: Final answer
   x = 1,612.65