Finding the Fourth Proportional to 2,136.66, 2,929.76 and 1,925.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.66 : 2,929.76 = 1,925.98 : x
2. Step 2: Convert to fraction form
   2,136.66/2,929.76 = 1,925.98/x
3. Step 3: Cross multiply
   2,136.66x = 2,929.76 × 1,925.98
4. Step 4: Simplify right side
   2,136.66x = 5,642,659.16
5. Step 5: Solve for x
   x = 5,642,659.16/2,136.66
6. Step 6: Final answer
   x = 2,640.88