Finding the Fourth Proportional to 949,085.76, 1,309,738.42 and 519,365.91

Step by Step Solution

1. Step 1: Write the proportion equation
   949,085.76 : 1,309,738.42 = 519,365.91 : x
2. Step 2: Convert to fraction form
   949,085.76/1,309,738.42 = 519,365.91/x
3. Step 3: Cross multiply
   949,085.76x = 1,309,738.42 × 519,365.91
4. Step 4: Simplify right side
   949,085.76x = 680,233,483,768.43
5. Step 5: Solve for x
   x = 680,233,483,768.43/949,085.76
6. Step 6: Final answer
   x = 716,724.99