Finding the Fourth Proportional to 2,903.48, 4,355.69 and 1,054.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,903.48 : 4,355.69 = 1,054.79 : x
2. Step 2: Convert to fraction form
   2,903.48/4,355.69 = 1,054.79/x
3. Step 3: Cross multiply
   2,903.48x = 4,355.69 × 1,054.79
4. Step 4: Simplify right side
   2,903.48x = 4,594,311.20
5. Step 5: Solve for x
   x = 4,594,311.20/2,903.48
6. Step 6: Final answer
   x = 1,582.35