Finding the Fourth Proportional to 1,867.76, 2,800.71 and 1,088.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,867.76 : 2,800.71 = 1,088.03 : x
2. Step 2: Convert to fraction form
   1,867.76/2,800.71 = 1,088.03/x
3. Step 3: Cross multiply
   1,867.76x = 2,800.71 × 1,088.03
4. Step 4: Simplify right side
   1,867.76x = 3,047,263.50
5. Step 5: Solve for x
   x = 3,047,263.50/1,867.76
6. Step 6: Final answer
   x = 1,631.51