Finding the Fourth Proportional to 1,076,216.48, 1,613,763.89 and 401,743.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076,216.48 : 1,613,763.89 = 401,743.05 : x
2. Step 2: Convert to fraction form
   1,076,216.48/1,613,763.89 = 401,743.05/x
3. Step 3: Cross multiply
   1,076,216.48x = 1,613,763.89 × 401,743.05
4. Step 4: Simplify right side
   1,076,216.48x = 648,318,427,148.47
5. Step 5: Solve for x
   x = 648,318,427,148.47/1,076,216.48
6. Step 6: Final answer
   x = 602,405.22