Finding the Fourth Proportional to 1,947.06, 2,685.61 and 1,160.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.06 : 2,685.61 = 1,160.50 : x
2. Step 2: Convert to fraction form
   1,947.06/2,685.61 = 1,160.50/x
3. Step 3: Cross multiply
   1,947.06x = 2,685.61 × 1,160.50
4. Step 4: Simplify right side
   1,947.06x = 3,116,650.41
5. Step 5: Solve for x
   x = 3,116,650.41/1,947.06
6. Step 6: Final answer
   x = 1,600.70