Finding the Fourth Proportional to 543,498.84, 811,588.32 and 443,856.69

Step by Step Solution

1. Step 1: Write the proportion equation
   543,498.84 : 811,588.32 = 443,856.69 : x
2. Step 2: Convert to fraction form
   543,498.84/811,588.32 = 443,856.69/x
3. Step 3: Cross multiply
   543,498.84x = 811,588.32 × 443,856.69
4. Step 4: Simplify right side
   543,498.84x = 360,228,905,357.86
5. Step 5: Solve for x
   x = 360,228,905,357.86/543,498.84
6. Step 6: Final answer
   x = 662,796.09