Finding the Fourth Proportional to 646,294.00, 891,654.86 and 374,213.38

Step by Step Solution

1. Step 1: Write the proportion equation
   646,294.00 : 891,654.86 = 374,213.38 : x
2. Step 2: Convert to fraction form
   646,294.00/891,654.86 = 374,213.38/x
3. Step 3: Cross multiply
   646,294.00x = 891,654.86 × 374,213.38
4. Step 4: Simplify right side
   646,294.00x = 333,669,172,624.69
5. Step 5: Solve for x
   x = 333,669,172,624.69/646,294.00
6. Step 6: Final answer
   x = 516,280.79