Finding the Fourth Proportional to 1,335.76, 2,003.59 and 851.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.76 : 2,003.59 = 851.02 : x
2. Step 2: Convert to fraction form
   1,335.76/2,003.59 = 851.02/x
3. Step 3: Cross multiply
   1,335.76x = 2,003.59 × 851.02
4. Step 4: Simplify right side
   1,335.76x = 1,705,095.16
5. Step 5: Solve for x
   x = 1,705,095.16/1,335.76
6. Step 6: Final answer
   x = 1,276.50