Finding the Fourth Proportional to 462,848.82, 638,548.76 and 290,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   462,848.82 : 638,548.76 = 290,665.50 : x
2. Step 2: Convert to fraction form
   462,848.82/638,548.76 = 290,665.50/x
3. Step 3: Cross multiply
   462,848.82x = 638,548.76 × 290,665.50
4. Step 4: Simplify right side
   462,848.82x = 185,604,094,599.78
5. Step 5: Solve for x
   x = 185,604,094,599.78/462,848.82
6. Step 6: Final answer
   x = 401,003.71