Finding the Fourth Proportional to 1,051.68, 1,451.34 and 609.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,051.68 : 1,451.34 = 609.72 : x
2. Step 2: Convert to fraction form
   1,051.68/1,451.34 = 609.72/x
3. Step 3: Cross multiply
   1,051.68x = 1,451.34 × 609.72
4. Step 4: Simplify right side
   1,051.68x = 884,911.02
5. Step 5: Solve for x
   x = 884,911.02/1,051.68
6. Step 6: Final answer
   x = 841.43