Finding the Fourth Proportional to 1,003,139.69, 1,504,692.11 and 404,085.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,003,139.69 : 1,504,692.11 = 404,085.53 : x
2. Step 2: Convert to fraction form
   1,003,139.69/1,504,692.11 = 404,085.53/x
3. Step 3: Cross multiply
   1,003,139.69x = 1,504,692.11 × 404,085.53
4. Step 4: Simplify right side
   1,003,139.69x = 608,024,299,212.28
5. Step 5: Solve for x
   x = 608,024,299,212.28/1,003,139.69
6. Step 6: Final answer
   x = 606,121.27