Finding the Fourth Proportional to 2,100.53, 2,898.29 and 1,261.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.53 : 2,898.29 = 1,261.01 : x
2. Step 2: Convert to fraction form
   2,100.53/2,898.29 = 1,261.01/x
3. Step 3: Cross multiply
   2,100.53x = 2,898.29 × 1,261.01
4. Step 4: Simplify right side
   2,100.53x = 3,654,751.88
5. Step 5: Solve for x
   x = 3,654,751.88/2,100.53
6. Step 6: Final answer
   x = 1,739.92