Finding the Fourth Proportional to 1,144,196.24, 1,716,238.62 and 424,678.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144,196.24 : 1,716,238.62 = 424,678.01 : x
2. Step 2: Convert to fraction form
   1,144,196.24/1,716,238.62 = 424,678.01/x
3. Step 3: Cross multiply
   1,144,196.24x = 1,716,238.62 × 424,678.01
4. Step 4: Simplify right side
   1,144,196.24x = 728,848,793,245.55
5. Step 5: Solve for x
   x = 728,848,793,245.55/1,144,196.24
6. Step 6: Final answer
   x = 636,996.32