Finding the Fourth Proportional to 1,051.43, 1,450.86 and 609.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.43 : 1,450.86 = 609.22 : x
2. Step 2: Convert to fraction form
   1,051.43/1,450.86 = 609.22/x
3. Step 3: Cross multiply
   1,051.43x = 1,450.86 × 609.22
4. Step 4: Simplify right side
   1,051.43x = 883,895.89
5. Step 5: Solve for x
   x = 883,895.89/1,051.43
6. Step 6: Final answer
   x = 840.66