Finding the Fourth Proportional to 2,904.89, 4,355.98 and 1,054.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,904.89 : 4,355.98 = 1,054.72 : x
2. Step 2: Convert to fraction form
   2,904.89/4,355.98 = 1,054.72/x
3. Step 3: Cross multiply
   2,904.89x = 4,355.98 × 1,054.72
4. Step 4: Simplify right side
   2,904.89x = 4,594,325.70
5. Step 5: Solve for x
   x = 4,594,325.70/2,904.89
6. Step 6: Final answer
   x = 1,581.58