Finding the Fourth Proportional to 1,838,404.52, 2,756,721.03 and 640,300.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,838,404.52 : 2,756,721.03 = 640,300.31 : x
2. Step 2: Convert to fraction form
   1,838,404.52/2,756,721.03 = 640,300.31/x
3. Step 3: Cross multiply
   1,838,404.52x = 2,756,721.03 × 640,300.31
4. Step 4: Simplify right side
   1,838,404.52x = 1,765,129,330,092.52
5. Step 5: Solve for x
   x = 1,765,129,330,092.52/1,838,404.52
6. Step 6: Final answer
   x = 960,141.97