Finding the Fourth Proportional to 1,889.99, 2,607.34 and 1,103.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.99 : 2,607.34 = 1,103.69 : x
2. Step 2: Convert to fraction form
   1,889.99/2,607.34 = 1,103.69/x
3. Step 3: Cross multiply
   1,889.99x = 2,607.34 × 1,103.69
4. Step 4: Simplify right side
   1,889.99x = 2,877,679.29
5. Step 5: Solve for x
   x = 2,877,679.29/1,889.99
6. Step 6: Final answer
   x = 1,522.59