Finding the Fourth Proportional to 742,790.34, 1,113,447.27 and 442,821.42

Step by Step Solution

1. Step 1: Write the proportion equation
   742,790.34 : 1,113,447.27 = 442,821.42 : x
2. Step 2: Convert to fraction form
   742,790.34/1,113,447.27 = 442,821.42/x
3. Step 3: Cross multiply
   742,790.34x = 1,113,447.27 × 442,821.42
4. Step 4: Simplify right side
   742,790.34x = 493,058,301,196.52
5. Step 5: Solve for x
   x = 493,058,301,196.52/742,790.34
6. Step 6: Final answer
   x = 663,792.02