Finding the Fourth Proportional to 2,085,969.47, 3,129,442.16 and 646,577.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085,969.47 : 3,129,442.16 = 646,577.51 : x
2. Step 2: Convert to fraction form
   2,085,969.47/3,129,442.16 = 646,577.51/x
3. Step 3: Cross multiply
   2,085,969.47x = 3,129,442.16 × 646,577.51
4. Step 4: Simplify right side
   2,085,969.47x = 2,023,426,900,621.72
5. Step 5: Solve for x
   x = 2,023,426,900,621.72/2,085,969.47
6. Step 6: Final answer
   x = 970,017.51