Finding the Fourth Proportional to 2,628,085.50, 3,626,758.80 and 1,420,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628,085.50 : 3,626,758.80 = 1,420,861.50 : x
2. Step 2: Convert to fraction form
   2,628,085.50/3,626,758.80 = 1,420,861.50/x
3. Step 3: Cross multiply
   2,628,085.50x = 3,626,758.80 × 1,420,861.50
4. Step 4: Simplify right side
   2,628,085.50x = 5,153,121,948,706.20
5. Step 5: Solve for x
   x = 5,153,121,948,706.20/2,628,085.50
6. Step 6: Final answer
   x = 1,960,789.31