Finding the Fourth Proportional to 1,089,216.31, 1,634,059.51 and 331,118.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,089,216.31 : 1,634,059.51 = 331,118.83 : x
2. Step 2: Convert to fraction form
   1,089,216.31/1,634,059.51 = 331,118.83/x
3. Step 3: Cross multiply
   1,089,216.31x = 1,634,059.51 × 331,118.83
4. Step 4: Simplify right side
   1,089,216.31x = 541,067,868,188.63
5. Step 5: Solve for x
   x = 541,067,868,188.63/1,089,216.31
6. Step 6: Final answer
   x = 496,749.69