Finding the Fourth Proportional to 2,904.74, 4,354.48 and 1,054.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,904.74 : 4,354.48 = 1,054.56 : x
2. Step 2: Convert to fraction form
   2,904.74/4,354.48 = 1,054.56/x
3. Step 3: Cross multiply
   2,904.74x = 4,354.48 × 1,054.56
4. Step 4: Simplify right side
   2,904.74x = 4,592,050.42
5. Step 5: Solve for x
   x = 4,592,050.42/2,904.74
6. Step 6: Final answer
   x = 1,580.88