Finding the Fourth Proportional to 739,499.82, 1,020,421.98 and 417,191.10

Step by Step Solution

1. Step 1: Write the proportion equation
   739,499.82 : 1,020,421.98 = 417,191.10 : x
2. Step 2: Convert to fraction form
   739,499.82/1,020,421.98 = 417,191.10/x
3. Step 3: Cross multiply
   739,499.82x = 1,020,421.98 × 417,191.10
4. Step 4: Simplify right side
   739,499.82x = 425,710,968,300.38
5. Step 5: Solve for x
   x = 425,710,968,300.38/739,499.82
6. Step 6: Final answer
   x = 575,674.20