Finding the Fourth Proportional to 1,084,569,890.94, 1,496,870,054.92 and 661,429,037.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084,569,890.94 : 1,496,870,054.92 = 661,429,037.99 : x
2. Step 2: Convert to fraction form
   1,084,569,890.94/1,496,870,054.92 = 661,429,037.99/x
3. Step 3: Cross multiply
   1,084,569,890.94x = 1,496,870,054.92 × 661,429,037.99
4. Step 4: Simplify right side
   1,084,569,890.94x = 990,073,320,426,309,888
5. Step 5: Solve for x
   x = 990,073,320,426,309,888/1,084,569,890.94
6. Step 6: Final answer
   x = 912,871,847.81