Finding the Fourth Proportional to 1,381,499.50, 2,072,365.90 and 384,227.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381,499.50 : 2,072,365.90 = 384,227.50 : x
2. Step 2: Convert to fraction form
   1,381,499.50/2,072,365.90 = 384,227.50/x
3. Step 3: Cross multiply
   1,381,499.50x = 2,072,365.90 × 384,227.50
4. Step 4: Simplify right side
   1,381,499.50x = 796,259,968,842.25
5. Step 5: Solve for x
   x = 796,259,968,842.25/1,381,499.50
6. Step 6: Final answer
   x = 576,373.69