Finding the Fourth Proportional to 2,100.58, 2,898.82 and 1,315.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.58 : 2,898.82 = 1,315.08 : x
2. Step 2: Convert to fraction form
   2,100.58/2,898.82 = 1,315.08/x
3. Step 3: Cross multiply
   2,100.58x = 2,898.82 × 1,315.08
4. Step 4: Simplify right side
   2,100.58x = 3,812,180.21
5. Step 5: Solve for x
   x = 3,812,180.21/2,100.58
6. Step 6: Final answer
   x = 1,814.82