Finding the Fourth Proportional to 1,379,900.21, 2,069,704.71 and 369,124.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379,900.21 : 2,069,704.71 = 369,124.22 : x
2. Step 2: Convert to fraction form
   1,379,900.21/2,069,704.71 = 369,124.22/x
3. Step 3: Cross multiply
   1,379,900.21x = 2,069,704.71 × 369,124.22
4. Step 4: Simplify right side
   1,379,900.21x = 763,978,141,883.34
5. Step 5: Solve for x
   x = 763,978,141,883.34/1,379,900.21
6. Step 6: Final answer
   x = 553,647.39