Finding the Fourth Proportional to 2,111.59, 2,914.34 and 1,365.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.59 : 2,914.34 = 1,365.88 : x
2. Step 2: Convert to fraction form
   2,111.59/2,914.34 = 1,365.88/x
3. Step 3: Cross multiply
   2,111.59x = 2,914.34 × 1,365.88
4. Step 4: Simplify right side
   2,111.59x = 3,980,638.72
5. Step 5: Solve for x
   x = 3,980,638.72/2,111.59
6. Step 6: Final answer
   x = 1,885.14