Finding the Fourth Proportional to 1,612.34, 2,225.06 and 931.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,612.34 : 2,225.06 = 931.10 : x
2. Step 2: Convert to fraction form
   1,612.34/2,225.06 = 931.10/x
3. Step 3: Cross multiply
   1,612.34x = 2,225.06 × 931.10
4. Step 4: Simplify right side
   1,612.34x = 2,071,753.37
5. Step 5: Solve for x
   x = 2,071,753.37/1,612.34
6. Step 6: Final answer
   x = 1,284.94