Finding the Fourth Proportional to 1,994.68, 2,990.40 and 898.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994.68 : 2,990.40 = 898.48 : x
2. Step 2: Convert to fraction form
   1,994.68/2,990.40 = 898.48/x
3. Step 3: Cross multiply
   1,994.68x = 2,990.40 × 898.48
4. Step 4: Simplify right side
   1,994.68x = 2,686,814.59
5. Step 5: Solve for x
   x = 2,686,814.59/1,994.68
6. Step 6: Final answer
   x = 1,346.99