Finding the Fourth Proportional to 1,011,543.72, 1,395,958.50 and 558,863.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011,543.72 : 1,395,958.50 = 558,863.88 : x
2. Step 2: Convert to fraction form
   1,011,543.72/1,395,958.50 = 558,863.88/x
3. Step 3: Cross multiply
   1,011,543.72x = 1,395,958.50 × 558,863.88
4. Step 4: Simplify right side
   1,011,543.72x = 780,150,783,628.98
5. Step 5: Solve for x
   x = 780,150,783,628.98/1,011,543.72
6. Step 6: Final answer
   x = 771,247.72