Finding the Fourth Proportional to 1,185,412,700, 1,635,869,526 and 663,891,932

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185,412,700 : 1,635,869,526 = 663,891,932 : x
2. Step 2: Convert to fraction form
   1,185,412,700/1,635,869,526 = 663,891,932/x
3. Step 3: Cross multiply
   1,185,412,700x = 1,635,869,526 × 663,891,932
4. Step 4: Simplify right side
   1,185,412,700x = 1,086,040,580,116,064,256
5. Step 5: Solve for x
   x = 1,086,040,580,116,064,256/1,185,412,700
6. Step 6: Final answer
   x = 916,170,866.16