Finding the Fourth Proportional to 1,856.32, 2,784.77 and 881.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.32 : 2,784.77 = 881.89 : x
2. Step 2: Convert to fraction form
   1,856.32/2,784.77 = 881.89/x
3. Step 3: Cross multiply
   1,856.32x = 2,784.77 × 881.89
4. Step 4: Simplify right side
   1,856.32x = 2,455,860.82
5. Step 5: Solve for x
   x = 2,455,860.82/1,856.32
6. Step 6: Final answer
   x = 1,322.97