Finding the Fourth Proportional to 1,786,315.68, 2,691,388.56 and 1,615,734.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786,315.68 : 2,691,388.56 = 1,615,734.72 : x
2. Step 2: Convert to fraction form
   1,786,315.68/2,691,388.56 = 1,615,734.72/x
3. Step 3: Cross multiply
   1,786,315.68x = 2,691,388.56 × 1,615,734.72
4. Step 4: Simplify right side
   1,786,315.68x = 4,348,569,941,402.80
5. Step 5: Solve for x
   x = 4,348,569,941,402.80/1,786,315.68
6. Step 6: Final answer
   x = 2,434,379.31