Finding the Fourth Proportional to 1,150.17, 1,588.59 and 914.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.17 : 1,588.59 = 914.91 : x
2. Step 2: Convert to fraction form
   1,150.17/1,588.59 = 914.91/x
3. Step 3: Cross multiply
   1,150.17x = 1,588.59 × 914.91
4. Step 4: Simplify right side
   1,150.17x = 1,453,416.88
5. Step 5: Solve for x
   x = 1,453,416.88/1,150.17
6. Step 6: Final answer
   x = 1,263.65