Finding the Fourth Proportional to 1,335.70, 1,841.61 and 1,003.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.70 : 1,841.61 = 1,003.06 : x
2. Step 2: Convert to fraction form
   1,335.70/1,841.61 = 1,003.06/x
3. Step 3: Cross multiply
   1,335.70x = 1,841.61 × 1,003.06
4. Step 4: Simplify right side
   1,335.70x = 1,847,245.33
5. Step 5: Solve for x
   x = 1,847,245.33/1,335.70
6. Step 6: Final answer
   x = 1,382.98