Finding the Fourth Proportional to 1,076,359.58, 1,613,978.81 and 401,886.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076,359.58 : 1,613,978.81 = 401,886.21 : x
2. Step 2: Convert to fraction form
   1,076,359.58/1,613,978.81 = 401,886.21/x
3. Step 3: Cross multiply
   1,076,359.58x = 1,613,978.81 × 401,886.21
4. Step 4: Simplify right side
   1,076,359.58x = 648,635,826,971.21
5. Step 5: Solve for x
   x = 648,635,826,971.21/1,076,359.58
6. Step 6: Final answer
   x = 602,620.02