Finding the Fourth Proportional to 2,375.83, 3,278.53 and 1,381.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,375.83 : 3,278.53 = 1,381.15 : x
2. Step 2: Convert to fraction form
   2,375.83/3,278.53 = 1,381.15/x
3. Step 3: Cross multiply
   2,375.83x = 3,278.53 × 1,381.15
4. Step 4: Simplify right side
   2,375.83x = 4,528,141.71
5. Step 5: Solve for x
   x = 4,528,141.71/2,375.83
6. Step 6: Final answer
   x = 1,905.92