Finding the Fourth Proportional to 1,947.90, 2,688.12 and 1,162.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.90 : 2,688.12 = 1,162.02 : x
2. Step 2: Convert to fraction form
   1,947.90/2,688.12 = 1,162.02/x
3. Step 3: Cross multiply
   1,947.90x = 2,688.12 × 1,162.02
4. Step 4: Simplify right side
   1,947.90x = 3,123,649.20
5. Step 5: Solve for x
   x = 3,123,649.20/1,947.90
6. Step 6: Final answer
   x = 1,603.60