Finding the Fourth Proportional to 1,167.82, 1,611.71 and 1,002.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,167.82 : 1,611.71 = 1,002.58 : x
2. Step 2: Convert to fraction form
   1,167.82/1,611.71 = 1,002.58/x
3. Step 3: Cross multiply
   1,167.82x = 1,611.71 × 1,002.58
4. Step 4: Simplify right side
   1,167.82x = 1,615,868.21
5. Step 5: Solve for x
   x = 1,615,868.21/1,167.82
6. Step 6: Final answer
   x = 1,383.66