Finding the Fourth Proportional to 1,094.00, 1,643.63 and 915.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,094.00 : 1,643.63 = 915.39 : x
2. Step 2: Convert to fraction form
   1,094.00/1,643.63 = 915.39/x
3. Step 3: Cross multiply
   1,094.00x = 1,643.63 × 915.39
4. Step 4: Simplify right side
   1,094.00x = 1,504,557.89
5. Step 5: Solve for x
   x = 1,504,557.89/1,094.00
6. Step 6: Final answer
   x = 1,375.29