Finding the Fourth Proportional to 1,395.59, 1,926.38 and 1,003.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,395.59 : 1,926.38 = 1,003.76 : x
2. Step 2: Convert to fraction form
   1,395.59/1,926.38 = 1,003.76/x
3. Step 3: Cross multiply
   1,395.59x = 1,926.38 × 1,003.76
4. Step 4: Simplify right side
   1,395.59x = 1,933,623.19
5. Step 5: Solve for x
   x = 1,933,623.19/1,395.59
6. Step 6: Final answer
   x = 1,385.52