Finding the Fourth Proportional to 1,870.76, 2,804.70 and 896.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.76 : 2,804.70 = 896.36 : x
2. Step 2: Convert to fraction form
   1,870.76/2,804.70 = 896.36/x
3. Step 3: Cross multiply
   1,870.76x = 2,804.70 × 896.36
4. Step 4: Simplify right side
   1,870.76x = 2,514,020.89
5. Step 5: Solve for x
   x = 2,514,020.89/1,870.76
6. Step 6: Final answer
   x = 1,343.85