Finding the Fourth Proportional to 1,970.37, 2,718.72 and 1,086.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,970.37 : 2,718.72 = 1,086.12 : x
2. Step 2: Convert to fraction form
   1,970.37/2,718.72 = 1,086.12/x
3. Step 3: Cross multiply
   1,970.37x = 2,718.72 × 1,086.12
4. Step 4: Simplify right side
   1,970.37x = 2,952,856.17
5. Step 5: Solve for x
   x = 2,952,856.17/1,970.37
6. Step 6: Final answer
   x = 1,498.63