Finding the Fourth Proportional to 1,316,222.16, 1,974,453.72 and 369,586.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316,222.16 : 1,974,453.72 = 369,586.50 : x
2. Step 2: Convert to fraction form
   1,316,222.16/1,974,453.72 = 369,586.50/x
3. Step 3: Cross multiply
   1,316,222.16x = 1,974,453.72 × 369,586.50
4. Step 4: Simplify right side
   1,316,222.16x = 729,731,439,786.78
5. Step 5: Solve for x
   x = 729,731,439,786.78/1,316,222.16
6. Step 6: Final answer
   x = 554,413.58