Finding the Fourth Proportional to 1,811.02, 2,499.24 and 1,003.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.02 : 2,499.24 = 1,003.50 : x
2. Step 2: Convert to fraction form
   1,811.02/2,499.24 = 1,003.50/x
3. Step 3: Cross multiply
   1,811.02x = 2,499.24 × 1,003.50
4. Step 4: Simplify right side
   1,811.02x = 2,507,987.34
5. Step 5: Solve for x
   x = 2,507,987.34/1,811.02
6. Step 6: Final answer
   x = 1,384.85