Finding the Fourth Proportional to 1,015,733.56, 1,401,703.32 and 556,839.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,733.56 : 1,401,703.32 = 556,839.76 : x
2. Step 2: Convert to fraction form
   1,015,733.56/1,401,703.32 = 556,839.76/x
3. Step 3: Cross multiply
   1,015,733.56x = 1,401,703.32 × 556,839.76
4. Step 4: Simplify right side
   1,015,733.56x = 780,524,140,300.00
5. Step 5: Solve for x
   x = 780,524,140,300.00/1,015,733.56
6. Step 6: Final answer
   x = 768,433.94