Finding the Fourth Proportional to 2,100.51, 2,898.70 and 1,156.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.51 : 2,898.70 = 1,156.30 : x
2. Step 2: Convert to fraction form
   2,100.51/2,898.70 = 1,156.30/x
3. Step 3: Cross multiply
   2,100.51x = 2,898.70 × 1,156.30
4. Step 4: Simplify right side
   2,100.51x = 3,351,766.81
5. Step 5: Solve for x
   x = 3,351,766.81/2,100.51
6. Step 6: Final answer
   x = 1,595.69