Finding the Fourth Proportional to 1,477.48, 2,208.05 and 1,392.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.48 : 2,208.05 = 1,392.12 : x
2. Step 2: Convert to fraction form
   1,477.48/2,208.05 = 1,392.12/x
3. Step 3: Cross multiply
   1,477.48x = 2,208.05 × 1,392.12
4. Step 4: Simplify right side
   1,477.48x = 3,073,870.57
5. Step 5: Solve for x
   x = 3,073,870.57/1,477.48
6. Step 6: Final answer
   x = 2,080.49