Finding the Fourth Proportional to 1,870.27, 2,804.66 and 637.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.27 : 2,804.66 = 637.34 : x
2. Step 2: Convert to fraction form
   1,870.27/2,804.66 = 637.34/x
3. Step 3: Cross multiply
   1,870.27x = 2,804.66 × 637.34
4. Step 4: Simplify right side
   1,870.27x = 1,787,518.82
5. Step 5: Solve for x
   x = 1,787,518.82/1,870.27
6. Step 6: Final answer
   x = 955.76