Finding the Fourth Proportional to 727,404.53, 1,003,849.35 and 405,114.57

Step by Step Solution

1. Step 1: Write the proportion equation
   727,404.53 : 1,003,849.35 = 405,114.57 : x
2. Step 2: Convert to fraction form
   727,404.53/1,003,849.35 = 405,114.57/x
3. Step 3: Cross multiply
   727,404.53x = 1,003,849.35 × 405,114.57
4. Step 4: Simplify right side
   727,404.53x = 406,673,997,770.03
5. Step 5: Solve for x
   x = 406,673,997,770.03/727,404.53
6. Step 6: Final answer
   x = 559,075.43