Finding the Fourth Proportional to 2,689,657.40, 3,711,728.61 and 1,528,105.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689,657.40 : 3,711,728.61 = 1,528,105.69 : x
2. Step 2: Convert to fraction form
   2,689,657.40/3,711,728.61 = 1,528,105.69/x
3. Step 3: Cross multiply
   2,689,657.40x = 3,711,728.61 × 1,528,105.69
4. Step 4: Simplify right side
   2,689,657.40x = 5,671,913,601,036.26
5. Step 5: Solve for x
   x = 5,671,913,601,036.26/2,689,657.40
6. Step 6: Final answer
   x = 2,108,786.64