Finding the Fourth Proportional to 1,173,300.48, 1,619,154.24 and 636,756.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,173,300.48 : 1,619,154.24 = 636,756.48 : x
2. Step 2: Convert to fraction form
   1,173,300.48/1,619,154.24 = 636,756.48/x
3. Step 3: Cross multiply
   1,173,300.48x = 1,619,154.24 × 636,756.48
4. Step 4: Simplify right side
   1,173,300.48x = 1,031,006,954,439.48
5. Step 5: Solve for x
   x = 1,031,006,954,439.48/1,173,300.48
6. Step 6: Final answer
   x = 878,723.71