Finding the Fourth Proportional to 2,011,892.61, 2,775,925.82 and 1,276,578.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011,892.61 : 2,775,925.82 = 1,276,578.78 : x
2. Step 2: Convert to fraction form
   2,011,892.61/2,775,925.82 = 1,276,578.78/x
3. Step 3: Cross multiply
   2,011,892.61x = 2,775,925.82 × 1,276,578.78
4. Step 4: Simplify right side
   2,011,892.61x = 3,543,687,990,283.21
5. Step 5: Solve for x
   x = 3,543,687,990,283.21/2,011,892.61
6. Step 6: Final answer
   x = 1,761,370.35