Finding the Fourth Proportional to 761,685.44, 1,051,109.76 and 422,150.72

Step by Step Solution

1. Step 1: Write the proportion equation
   761,685.44 : 1,051,109.76 = 422,150.72 : x
2. Step 2: Convert to fraction form
   761,685.44/1,051,109.76 = 422,150.72/x
3. Step 3: Cross multiply
   761,685.44x = 1,051,109.76 × 422,150.72
4. Step 4: Simplify right side
   761,685.44x = 443,726,741,983.03
5. Step 5: Solve for x
   x = 443,726,741,983.03/761,685.44
6. Step 6: Final answer
   x = 582,559.04