Finding the Fourth Proportional to 2,860,719.38, 3,947,112.15 and 1,620,340.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,860,719.38 : 3,947,112.15 = 1,620,340.46 : x
2. Step 2: Convert to fraction form
   2,860,719.38/3,947,112.15 = 1,620,340.46/x
3. Step 3: Cross multiply
   2,860,719.38x = 3,947,112.15 × 1,620,340.46
4. Step 4: Simplify right side
   2,860,719.38x = 6,395,665,516,802.59
5. Step 5: Solve for x
   x = 6,395,665,516,802.59/2,860,719.38
6. Step 6: Final answer
   x = 2,235,684.34