Finding the Fourth Proportional to 1,137,730.93, 1,570,038.71 and 628,422.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137,730.93 : 1,570,038.71 = 628,422.37 : x
2. Step 2: Convert to fraction form
   1,137,730.93/1,570,038.71 = 628,422.37/x
3. Step 3: Cross multiply
   1,137,730.93x = 1,570,038.71 × 628,422.37
4. Step 4: Simplify right side
   1,137,730.93x = 986,647,443,987.83
5. Step 5: Solve for x
   x = 986,647,443,987.83/1,137,730.93
6. Step 6: Final answer
   x = 867,206.31