Finding the Fourth Proportional to 1,970.52, 2,719.30 and 1,086.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,970.52 : 2,719.30 = 1,086.33 : x
2. Step 2: Convert to fraction form
   1,970.52/2,719.30 = 1,086.33/x
3. Step 3: Cross multiply
   1,970.52x = 2,719.30 × 1,086.33
4. Step 4: Simplify right side
   1,970.52x = 2,954,057.17
5. Step 5: Solve for x
   x = 2,954,057.17/1,970.52
6. Step 6: Final answer
   x = 1,499.13