Finding the Fourth Proportional to 2,080.51, 2,870.70 and 1,196.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.51 : 2,870.70 = 1,196.35 : x
2. Step 2: Convert to fraction form
   2,080.51/2,870.70 = 1,196.35/x
3. Step 3: Cross multiply
   2,080.51x = 2,870.70 × 1,196.35
4. Step 4: Simplify right side
   2,080.51x = 3,434,361.95
5. Step 5: Solve for x
   x = 3,434,361.95/2,080.51
6. Step 6: Final answer
   x = 1,650.73