Finding the Fourth Proportional to 1,991.03, 2,987.55 and 895.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991.03 : 2,987.55 = 895.10 : x
2. Step 2: Convert to fraction form
   1,991.03/2,987.55 = 895.10/x
3. Step 3: Cross multiply
   1,991.03x = 2,987.55 × 895.10
4. Step 4: Simplify right side
   1,991.03x = 2,674,141.07
5. Step 5: Solve for x
   x = 2,674,141.07/1,991.03
6. Step 6: Final answer
   x = 1,343.10