Finding the Fourth Proportional to 1,051.05, 1,450.52 and 609.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.05 : 1,450.52 = 609.06 : x
2. Step 2: Convert to fraction form
   1,051.05/1,450.52 = 609.06/x
3. Step 3: Cross multiply
   1,051.05x = 1,450.52 × 609.06
4. Step 4: Simplify right side
   1,051.05x = 883,453.71
5. Step 5: Solve for x
   x = 883,453.71/1,051.05
6. Step 6: Final answer
   x = 840.54