Finding the Fourth Proportional to 1,075,061.75, 1,611,468.12 and 400,849.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,075,061.75 : 1,611,468.12 = 400,849.74 : x
2. Step 2: Convert to fraction form
   1,075,061.75/1,611,468.12 = 400,849.74/x
3. Step 3: Cross multiply
   1,075,061.75x = 1,611,468.12 × 400,849.74
4. Step 4: Simplify right side
   1,075,061.75x = 645,956,578,423.48
5. Step 5: Solve for x
   x = 645,956,578,423.48/1,075,061.75
6. Step 6: Final answer
   x = 600,855.33