Finding the Fourth Proportional to 2,130.82, 3,196.20 and 670.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,130.82 : 3,196.20 = 670.06 : x
2. Step 2: Convert to fraction form
   2,130.82/3,196.20 = 670.06/x
3. Step 3: Cross multiply
   2,130.82x = 3,196.20 × 670.06
4. Step 4: Simplify right side
   2,130.82x = 2,141,645.77
5. Step 5: Solve for x
   x = 2,141,645.77/2,130.82
6. Step 6: Final answer
   x = 1,005.08