Finding the Fourth Proportional to 740,646.58, 1,022,091.33 and 401,116.18

Step by Step Solution

1. Step 1: Write the proportion equation
   740,646.58 : 1,022,091.33 = 401,116.18 : x
2. Step 2: Convert to fraction form
   740,646.58/1,022,091.33 = 401,116.18/x
3. Step 3: Cross multiply
   740,646.58x = 1,022,091.33 × 401,116.18
4. Step 4: Simplify right side
   740,646.58x = 409,977,369,900.72
5. Step 5: Solve for x
   x = 409,977,369,900.72/740,646.58
6. Step 6: Final answer
   x = 553,539.81