Finding the Fourth Proportional to 1,401,970.71, 2,103,003.32 and 391,117.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401,970.71 : 2,103,003.32 = 391,117.35 : x
2. Step 2: Convert to fraction form
   1,401,970.71/2,103,003.32 = 391,117.35/x
3. Step 3: Cross multiply
   1,401,970.71x = 2,103,003.32 × 391,117.35
4. Step 4: Simplify right side
   1,401,970.71x = 822,521,083,604.02
5. Step 5: Solve for x
   x = 822,521,083,604.02/1,401,970.71
6. Step 6: Final answer
   x = 586,689.21