Finding the Fourth Proportional to 2,100.18, 2,898.20 and 1,156

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.18 : 2,898.20 = 1,156 : x
2. Step 2: Convert to fraction form
   2,100.18/2,898.20 = 1,156/x
3. Step 3: Cross multiply
   2,100.18x = 2,898.20 × 1,156
4. Step 4: Simplify right side
   2,100.18x = 3,350,319.20
5. Step 5: Solve for x
   x = 3,350,319.20/2,100.18
6. Step 6: Final answer
   x = 1,595.25