Finding the Fourth Proportional to 2,114.58, 2,918.31 and 1,170.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.58 : 2,918.31 = 1,170.59 : x
2. Step 2: Convert to fraction form
   2,114.58/2,918.31 = 1,170.59/x
3. Step 3: Cross multiply
   2,114.58x = 2,918.31 × 1,170.59
4. Step 4: Simplify right side
   2,114.58x = 3,416,144.50
5. Step 5: Solve for x
   x = 3,416,144.50/2,114.58
6. Step 6: Final answer
   x = 1,615.52