Finding the Fourth Proportional to 2,300.15, 3,450.63 and 913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.15 : 3,450.63 = 913.50 : x
2. Step 2: Convert to fraction form
   2,300.15/3,450.63 = 913.50/x
3. Step 3: Cross multiply
   2,300.15x = 3,450.63 × 913.50
4. Step 4: Simplify right side
   2,300.15x = 3,152,150.51
5. Step 5: Solve for x
   x = 3,152,150.51/2,300.15
6. Step 6: Final answer
   x = 1,370.41