Finding the Fourth Proportional to 1,856.50, 2,784.56 and 881.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,856.50 : 2,784.56 = 881.98 : x
2. Step 2: Convert to fraction form
   1,856.50/2,784.56 = 881.98/x
3. Step 3: Cross multiply
   1,856.50x = 2,784.56 × 881.98
4. Step 4: Simplify right side
   1,856.50x = 2,455,926.23
5. Step 5: Solve for x
   x = 2,455,926.23/1,856.50
6. Step 6: Final answer
   x = 1,322.88