Finding the Fourth Proportional to 711,667.80, 982,092.72 and 389,373.24

Step by Step Solution

1. Step 1: Write the proportion equation
   711,667.80 : 982,092.72 = 389,373.24 : x
2. Step 2: Convert to fraction form
   711,667.80/982,092.72 = 389,373.24/x
3. Step 3: Cross multiply
   711,667.80x = 982,092.72 × 389,373.24
4. Step 4: Simplify right side
   711,667.80x = 382,400,624,366.81
5. Step 5: Solve for x
   x = 382,400,624,366.81/711,667.80
6. Step 6: Final answer
   x = 537,330.23