Finding the Fourth Proportional to 1,499,865, 2,249,805.50 and 613,401

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499,865 : 2,249,805.50 = 613,401 : x
2. Step 2: Convert to fraction form
   1,499,865/2,249,805.50 = 613,401/x
3. Step 3: Cross multiply
   1,499,865x = 2,249,805.50 × 613,401
4. Step 4: Simplify right side
   1,499,865x = 1,380,032,943,505.50
5. Step 5: Solve for x
   x = 1,380,032,943,505.50/1,499,865
6. Step 6: Final answer
   x = 920,104.77