Finding the Fourth Proportional to 2,073.60, 3,111.21 and 1,423.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.60 : 3,111.21 = 1,423.98 : x
2. Step 2: Convert to fraction form
   2,073.60/3,111.21 = 1,423.98/x
3. Step 3: Cross multiply
   2,073.60x = 3,111.21 × 1,423.98
4. Step 4: Simplify right side
   2,073.60x = 4,430,300.82
5. Step 5: Solve for x
   x = 4,430,300.82/2,073.60
6. Step 6: Final answer
   x = 2,136.53