Finding the Fourth Proportional to 1,376.95, 1,899.40 and 1,003.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.95 : 1,899.40 = 1,003.49 : x
2. Step 2: Convert to fraction form
   1,376.95/1,899.40 = 1,003.49/x
3. Step 3: Cross multiply
   1,376.95x = 1,899.40 × 1,003.49
4. Step 4: Simplify right side
   1,376.95x = 1,906,025.90
5. Step 5: Solve for x
   x = 1,906,025.90/1,376.95
6. Step 6: Final answer
   x = 1,384.24