Finding the Fourth Proportional to 2,131.03, 3,197.04 and 670.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.03 : 3,197.04 = 670.15 : x
2. Step 2: Convert to fraction form
   2,131.03/3,197.04 = 670.15/x
3. Step 3: Cross multiply
   2,131.03x = 3,197.04 × 670.15
4. Step 4: Simplify right side
   2,131.03x = 2,142,494.50
5. Step 5: Solve for x
   x = 2,142,494.50/2,131.03
6. Step 6: Final answer
   x = 1,005.38