Finding the Fourth Proportional to 1,002,980.50, 1,384,137.39 and 550,271.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002,980.50 : 1,384,137.39 = 550,271.50 : x
2. Step 2: Convert to fraction form
   1,002,980.50/1,384,137.39 = 550,271.50/x
3. Step 3: Cross multiply
   1,002,980.50x = 1,384,137.39 × 550,271.50
4. Step 4: Simplify right side
   1,002,980.50x = 761,651,357,801.39
5. Step 5: Solve for x
   x = 761,651,357,801.39/1,002,980.50
6. Step 6: Final answer
   x = 759,388.00