Finding the Fourth Proportional to 2,100.21, 2,898.37 and 1,156.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.21 : 2,898.37 = 1,156.08 : x
2. Step 2: Convert to fraction form
   2,100.21/2,898.37 = 1,156.08/x
3. Step 3: Cross multiply
   2,100.21x = 2,898.37 × 1,156.08
4. Step 4: Simplify right side
   2,100.21x = 3,350,747.59
5. Step 5: Solve for x
   x = 3,350,747.59/2,100.21
6. Step 6: Final answer
   x = 1,595.43