Finding the Fourth Proportional to 2,180.02, 3,268.77 and 947.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180.02 : 3,268.77 = 947.02 : x
2. Step 2: Convert to fraction form
   2,180.02/3,268.77 = 947.02/x
3. Step 3: Cross multiply
   2,180.02x = 3,268.77 × 947.02
4. Step 4: Simplify right side
   2,180.02x = 3,095,590.57
5. Step 5: Solve for x
   x = 3,095,590.57/2,180.02
6. Step 6: Final answer
   x = 1,419.98