Finding the Fourth Proportional to 1,870.32, 2,581.34 and 1,427.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.32 : 2,581.34 = 1,427.38 : x
2. Step 2: Convert to fraction form
   1,870.32/2,581.34 = 1,427.38/x
3. Step 3: Cross multiply
   1,870.32x = 2,581.34 × 1,427.38
4. Step 4: Simplify right side
   1,870.32x = 3,684,553.09
5. Step 5: Solve for x
   x = 3,684,553.09/1,870.32
6. Step 6: Final answer
   x = 1,970.01