Finding the Fourth Proportional to 2,100.42, 2,898.74 and 1,156.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.42 : 2,898.74 = 1,156.39 : x
2. Step 2: Convert to fraction form
   2,100.42/2,898.74 = 1,156.39/x
3. Step 3: Cross multiply
   2,100.42x = 2,898.74 × 1,156.39
4. Step 4: Simplify right side
   2,100.42x = 3,352,069.59
5. Step 5: Solve for x
   x = 3,352,069.59/2,100.42
6. Step 6: Final answer
   x = 1,595.90