Finding the Fourth Proportional to 1,340,423.89, 2,010,004.17 and 486,893.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,340,423.89 : 2,010,004.17 = 486,893.84 : x
2. Step 2: Convert to fraction form
   1,340,423.89/2,010,004.17 = 486,893.84/x
3. Step 3: Cross multiply
   1,340,423.89x = 2,010,004.17 × 486,893.84
4. Step 4: Simplify right side
   1,340,423.89x = 978,658,648,747.31
5. Step 5: Solve for x
   x = 978,658,648,747.31/1,340,423.89
6. Step 6: Final answer
   x = 730,111.31