Finding the Fourth Proportional to 2,097,278.10, 3,138,688.71 and 1,287,124.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097,278.10 : 3,138,688.71 = 1,287,124.74 : x
2. Step 2: Convert to fraction form
   2,097,278.10/3,138,688.71 = 1,287,124.74/x
3. Step 3: Cross multiply
   2,097,278.10x = 3,138,688.71 × 1,287,124.74
4. Step 4: Simplify right side
   2,097,278.10x = 4,039,883,889,799.69
5. Step 5: Solve for x
   x = 4,039,883,889,799.69/2,097,278.10
6. Step 6: Final answer
   x = 1,926,250.93