Finding the Fourth Proportional to 1,875.89, 2,811.98 and 902.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,875.89 : 2,811.98 = 902.68 : x
2. Step 2: Convert to fraction form
   1,875.89/2,811.98 = 902.68/x
3. Step 3: Cross multiply
   1,875.89x = 2,811.98 × 902.68
4. Step 4: Simplify right side
   1,875.89x = 2,538,313.33
5. Step 5: Solve for x
   x = 2,538,313.33/1,875.89
6. Step 6: Final answer
   x = 1,353.12