Finding the Fourth Proportional to 1,240,103.69, 1,711,210.55 and 696,299.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,240,103.69 : 1,711,210.55 = 696,299.25 : x
2. Step 2: Convert to fraction form
   1,240,103.69/1,711,210.55 = 696,299.25/x
3. Step 3: Cross multiply
   1,240,103.69x = 1,711,210.55 × 696,299.25
4. Step 4: Simplify right side
   1,240,103.69x = 1,191,514,619,075.59
5. Step 5: Solve for x
   x = 1,191,514,619,075.59/1,240,103.69
6. Step 6: Final answer
   x = 960,818.55