Finding the Fourth Proportional to 1,591.00, 2,387.72 and 898.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,591.00 : 2,387.72 = 898.28 : x
2. Step 2: Convert to fraction form
   1,591.00/2,387.72 = 898.28/x
3. Step 3: Cross multiply
   1,591.00x = 2,387.72 × 898.28
4. Step 4: Simplify right side
   1,591.00x = 2,144,849.34
5. Step 5: Solve for x
   x = 2,144,849.34/1,591.00
6. Step 6: Final answer
   x = 1,348.11