Finding the Fourth Proportional to 1,574.22, 2,360.42 and 1,054.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.22 : 2,360.42 = 1,054.82 : x
2. Step 2: Convert to fraction form
   1,574.22/2,360.42 = 1,054.82/x
3. Step 3: Cross multiply
   1,574.22x = 2,360.42 × 1,054.82
4. Step 4: Simplify right side
   1,574.22x = 2,489,818.22
5. Step 5: Solve for x
   x = 2,489,818.22/1,574.22
6. Step 6: Final answer
   x = 1,581.62