Finding the Fourth Proportional to 2,066.48, 3,100.80 and 913.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.48 : 3,100.80 = 913.04 : x
2. Step 2: Convert to fraction form
   2,066.48/3,100.80 = 913.04/x
3. Step 3: Cross multiply
   2,066.48x = 3,100.80 × 913.04
4. Step 4: Simplify right side
   2,066.48x = 2,831,154.43
5. Step 5: Solve for x
   x = 2,831,154.43/2,066.48
6. Step 6: Final answer
   x = 1,370.04