Finding the Fourth Proportional to 2,709,870.17, 4,064,807.10 and 688,265.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709,870.17 : 4,064,807.10 = 688,265.69 : x
2. Step 2: Convert to fraction form
   2,709,870.17/4,064,807.10 = 688,265.69/x
3. Step 3: Cross multiply
   2,709,870.17x = 4,064,807.10 × 688,265.69
4. Step 4: Simplify right side
   2,709,870.17x = 2,797,667,263,398.40
5. Step 5: Solve for x
   x = 2,797,667,263,398.40/2,709,870.17
6. Step 6: Final answer
   x = 1,032,399.00