Finding the Fourth Proportional to 1,865.34, 2,575.37 and 1,157.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,865.34 : 2,575.37 = 1,157.93 : x
2. Step 2: Convert to fraction form
   1,865.34/2,575.37 = 1,157.93/x
3. Step 3: Cross multiply
   1,865.34x = 2,575.37 × 1,157.93
4. Step 4: Simplify right side
   1,865.34x = 2,982,079.52
5. Step 5: Solve for x
   x = 2,982,079.52/1,865.34
6. Step 6: Final answer
   x = 1,598.68