Finding the Fourth Proportional to 3,364.72, 5,048.40 and 1,056.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,364.72 : 5,048.40 = 1,056.40 : x
2. Step 2: Convert to fraction form
   3,364.72/5,048.40 = 1,056.40/x
3. Step 3: Cross multiply
   3,364.72x = 5,048.40 × 1,056.40
4. Step 4: Simplify right side
   3,364.72x = 5,333,129.76
5. Step 5: Solve for x
   x = 5,333,129.76/3,364.72
6. Step 6: Final answer
   x = 1,585.01