Finding the Fourth Proportional to 1,629,672.90, 2,445,384.15 and 683,139.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,629,672.90 : 2,445,384.15 = 683,139.30 : x
2. Step 2: Convert to fraction form
   1,629,672.90/2,445,384.15 = 683,139.30/x
3. Step 3: Cross multiply
   1,629,672.90x = 2,445,384.15 × 683,139.30
4. Step 4: Simplify right side
   1,629,672.90x = 1,670,538,016,462.10
5. Step 5: Solve for x
   x = 1,670,538,016,462.10/1,629,672.90
6. Step 6: Final answer
   x = 1,025,075.66