Finding the Fourth Proportional to 1,366,914,007.50, 1,886,243,401.32 and 802,421,809.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,366,914,007.50 : 1,886,243,401.32 = 802,421,809.62 : x
2. Step 2: Convert to fraction form
   1,366,914,007.50/1,886,243,401.32 = 802,421,809.62/x
3. Step 3: Cross multiply
   1,366,914,007.50x = 1,886,243,401.32 × 802,421,809.62
4. Step 4: Simplify right side
   1,366,914,007.50x = 1,513,562,843,470,978,304
5. Step 5: Solve for x
   x = 1,513,562,843,470,978,304/1,366,914,007.50
6. Step 6: Final answer
   x = 1,107,284,609.83