Finding the Fourth Proportional to 1,870.37, 2,801.90 and 1,375.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.37 : 2,801.90 = 1,375.86 : x
2. Step 2: Convert to fraction form
   1,870.37/2,801.90 = 1,375.86/x
3. Step 3: Cross multiply
   1,870.37x = 2,801.90 × 1,375.86
4. Step 4: Simplify right side
   1,870.37x = 3,855,015.25
5. Step 5: Solve for x
   x = 3,855,015.25/1,870.37
6. Step 6: Final answer
   x = 2,061.10