Finding the Fourth Proportional to 1,015,723.10, 1,401,688.94 and 556,829.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,723.10 : 1,401,688.94 = 556,829.34 : x
2. Step 2: Convert to fraction form
   1,015,723.10/1,401,688.94 = 556,829.34/x
3. Step 3: Cross multiply
   1,015,723.10x = 1,401,688.94 × 556,829.34
4. Step 4: Simplify right side
   1,015,723.10x = 780,501,527,345.50
5. Step 5: Solve for x
   x = 780,501,527,345.50/1,015,723.10
6. Step 6: Final answer
   x = 768,419.59