Finding the Fourth Proportional to 2,904.18, 4,355.91 and 1,055.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,904.18 : 4,355.91 = 1,055.22 : x
2. Step 2: Convert to fraction form
   2,904.18/4,355.91 = 1,055.22/x
3. Step 3: Cross multiply
   2,904.18x = 4,355.91 × 1,055.22
4. Step 4: Simplify right side
   2,904.18x = 4,596,443.35
5. Step 5: Solve for x
   x = 4,596,443.35/2,904.18
6. Step 6: Final answer
   x = 1,582.70