Finding the Fourth Proportional to 2,100.90, 3,153.29 and 1,061.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.90 : 3,153.29 = 1,061.63 : x
2. Step 2: Convert to fraction form
   2,100.90/3,153.29 = 1,061.63/x
3. Step 3: Cross multiply
   2,100.90x = 3,153.29 × 1,061.63
4. Step 4: Simplify right side
   2,100.90x = 3,347,637.80
5. Step 5: Solve for x
   x = 3,347,637.80/2,100.90
6. Step 6: Final answer
   x = 1,593.43