Finding the Fourth Proportional to 1,231,595,479.56, 1,699,588,233.88 and 667,066,326.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231,595,479.56 : 1,699,588,233.88 = 667,066,326.24 : x
2. Step 2: Convert to fraction form
   1,231,595,479.56/1,699,588,233.88 = 667,066,326.24/x
3. Step 3: Cross multiply
   1,231,595,479.56x = 1,699,588,233.88 × 667,066,326.24
4. Step 4: Simplify right side
   1,231,595,479.56x = 1,133,738,079,295,061,632
5. Step 5: Solve for x
   x = 1,133,738,079,295,061,632/1,231,595,479.56
6. Step 6: Final answer
   x = 920,544,203.12