Finding the Fourth Proportional to 1,870.56, 2,800.80 and 1,254.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.56 : 2,800.80 = 1,254.24 : x
2. Step 2: Convert to fraction form
   1,870.56/2,800.80 = 1,254.24/x
3. Step 3: Cross multiply
   1,870.56x = 2,800.80 × 1,254.24
4. Step 4: Simplify right side
   1,870.56x = 3,512,875.39
5. Step 5: Solve for x
   x = 3,512,875.39/1,870.56
6. Step 6: Final answer
   x = 1,877.98