Finding the Fourth Proportional to 2,005,131.16, 3,006,495.06 and 638,314.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005,131.16 : 3,006,495.06 = 638,314.48 : x
2. Step 2: Convert to fraction form
   2,005,131.16/3,006,495.06 = 638,314.48/x
3. Step 3: Cross multiply
   2,005,131.16x = 3,006,495.06 × 638,314.48
4. Step 4: Simplify right side
   2,005,131.16x = 1,919,089,330,846.47
5. Step 5: Solve for x
   x = 1,919,089,330,846.47/2,005,131.16
6. Step 6: Final answer
   x = 957,089.18