Finding the Fourth Proportional to 762,680.58, 1,052,499.33 and 423,148.02

Step by Step Solution

1. Step 1: Write the proportion equation
   762,680.58 : 1,052,499.33 = 423,148.02 : x
2. Step 2: Convert to fraction form
   762,680.58/1,052,499.33 = 423,148.02/x
3. Step 3: Cross multiply
   762,680.58x = 1,052,499.33 × 423,148.02
4. Step 4: Simplify right side
   762,680.58x = 445,363,007,540.83
5. Step 5: Solve for x
   x = 445,363,007,540.83/762,680.58
6. Step 6: Final answer
   x = 583,944.34