Finding the Fourth Proportional to 2,123,407.30, 3,178,112.55 and 1,647,516.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123,407.30 : 3,178,112.55 = 1,647,516.10 : x
2. Step 2: Convert to fraction form
   2,123,407.30/3,178,112.55 = 1,647,516.10/x
3. Step 3: Cross multiply
   2,123,407.30x = 3,178,112.55 × 1,647,516.10
4. Step 4: Simplify right side
   2,123,407.30x = 5,235,991,593,737.06
5. Step 5: Solve for x
   x = 5,235,991,593,737.06/2,123,407.30
6. Step 6: Final answer
   x = 2,465,844.21