Finding the Fourth Proportional to 1,842.22, 2,542.34 and 1,056.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,842.22 : 2,542.34 = 1,056.42 : x
2. Step 2: Convert to fraction form
   1,842.22/2,542.34 = 1,056.42/x
3. Step 3: Cross multiply
   1,842.22x = 2,542.34 × 1,056.42
4. Step 4: Simplify right side
   1,842.22x = 2,685,778.82
5. Step 5: Solve for x
   x = 2,685,778.82/1,842.22
6. Step 6: Final answer
   x = 1,457.90