Finding the Fourth Proportional to 1,477.28, 2,210.88 and 1,111.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.28 : 2,210.88 = 1,111.16 : x
2. Step 2: Convert to fraction form
   1,477.28/2,210.88 = 1,111.16/x
3. Step 3: Cross multiply
   1,477.28x = 2,210.88 × 1,111.16
4. Step 4: Simplify right side
   1,477.28x = 2,456,641.42
5. Step 5: Solve for x
   x = 2,456,641.42/1,477.28
6. Step 6: Final answer
   x = 1,662.95