Finding the Fourth Proportional to 1,878.76, 2,594.91 and 1,408.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.76 : 2,594.91 = 1,408.71 : x
2. Step 2: Convert to fraction form
   1,878.76/2,594.91 = 1,408.71/x
3. Step 3: Cross multiply
   1,878.76x = 2,594.91 × 1,408.71
4. Step 4: Simplify right side
   1,878.76x = 3,655,475.67
5. Step 5: Solve for x
   x = 3,655,475.67/1,878.76
6. Step 6: Final answer
   x = 1,945.69