Finding the Fourth Proportional to 531,667.80, 733,287 and 340,698.96

Step by Step Solution

1. Step 1: Write the proportion equation
   531,667.80 : 733,287 = 340,698.96 : x
2. Step 2: Convert to fraction form
   531,667.80/733,287 = 340,698.96/x
3. Step 3: Cross multiply
   531,667.80x = 733,287 × 340,698.96
4. Step 4: Simplify right side
   531,667.80x = 249,830,118,281.52
5. Step 5: Solve for x
   x = 249,830,118,281.52/531,667.80
6. Step 6: Final answer
   x = 469,898.91