Finding the Fourth Proportional to 1,920,390.89, 2,880,587.29 and 500,443.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920,390.89 : 2,880,587.29 = 500,443.37 : x
2. Step 2: Convert to fraction form
   1,920,390.89/2,880,587.29 = 500,443.37/x
3. Step 3: Cross multiply
   1,920,390.89x = 2,880,587.29 × 500,443.37
4. Step 4: Simplify right side
   1,920,390.89x = 1,441,570,795,332.72
5. Step 5: Solve for x
   x = 1,441,570,795,332.72/1,920,390.89
6. Step 6: Final answer
   x = 750,665.30