Finding the Fourth Proportional to 1,871.00, 2,807.87 and 897.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,871.00 : 2,807.87 = 897.78 : x
2. Step 2: Convert to fraction form
   1,871.00/2,807.87 = 897.78/x
3. Step 3: Cross multiply
   1,871.00x = 2,807.87 × 897.78
4. Step 4: Simplify right side
   1,871.00x = 2,520,845.04
5. Step 5: Solve for x
   x = 2,520,845.04/1,871.00
6. Step 6: Final answer
   x = 1,347.33