Finding the Fourth Proportional to 979,667.66, 1,468,731.47 and 619,080.10

Step by Step Solution

1. Step 1: Write the proportion equation
   979,667.66 : 1,468,731.47 = 619,080.10 : x
2. Step 2: Convert to fraction form
   979,667.66/1,468,731.47 = 619,080.10/x
3. Step 3: Cross multiply
   979,667.66x = 1,468,731.47 × 619,080.10
4. Step 4: Simplify right side
   979,667.66x = 909,262,419,039.15
5. Step 5: Solve for x
   x = 909,262,419,039.15/979,667.66
6. Step 6: Final answer
   x = 928,133.54