Finding the Fourth Proportional to 1,182,438.03, 1,631,764.41 and 638,573.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182,438.03 : 1,631,764.41 = 638,573.86 : x
2. Step 2: Convert to fraction form
   1,182,438.03/1,631,764.41 = 638,573.86/x
3. Step 3: Cross multiply
   1,182,438.03x = 1,631,764.41 × 638,573.86
4. Step 4: Simplify right side
   1,182,438.03x = 1,042,002,089,745.50
5. Step 5: Solve for x
   x = 1,042,002,089,745.50/1,182,438.03
6. Step 6: Final answer
   x = 881,231.88