Finding the Fourth Proportional to 3,723.31, 5,585.33 and 1,054.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,723.31 : 5,585.33 = 1,054.91 : x
2. Step 2: Convert to fraction form
   3,723.31/5,585.33 = 1,054.91/x
3. Step 3: Cross multiply
   3,723.31x = 5,585.33 × 1,054.91
4. Step 4: Simplify right side
   3,723.31x = 5,892,037.07
5. Step 5: Solve for x
   x = 5,892,037.07/3,723.31
6. Step 6: Final answer
   x = 1,582.47