Finding the Fourth Proportional to 1,678,978.24, 2,519,209.32 and 880,068.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678,978.24 : 2,519,209.32 = 880,068.76 : x
2. Step 2: Convert to fraction form
   1,678,978.24/2,519,209.32 = 880,068.76/x
3. Step 3: Cross multiply
   1,678,978.24x = 2,519,209.32 × 880,068.76
4. Step 4: Simplify right side
   1,678,978.24x = 2,217,077,422,432.84
5. Step 5: Solve for x
   x = 2,217,077,422,432.84/1,678,978.24
6. Step 6: Final answer
   x = 1,320,492.05