Finding the Fourth Proportional to 1,492,196.48, 2,237,636.28 and 426,996.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492,196.48 : 2,237,636.28 = 426,996.08 : x
2. Step 2: Convert to fraction form
   1,492,196.48/2,237,636.28 = 426,996.08/x
3. Step 3: Cross multiply
   1,492,196.48x = 2,237,636.28 × 426,996.08
4. Step 4: Simplify right side
   1,492,196.48x = 955,461,920,025.78
5. Step 5: Solve for x
   x = 955,461,920,025.78/1,492,196.48
6. Step 6: Final answer
   x = 640,305.71