Finding the Fourth Proportional to 1,677.10, 2,314.31 and 931.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.10 : 2,314.31 = 931.04 : x
2. Step 2: Convert to fraction form
   1,677.10/2,314.31 = 931.04/x
3. Step 3: Cross multiply
   1,677.10x = 2,314.31 × 931.04
4. Step 4: Simplify right side
   1,677.10x = 2,154,715.18
5. Step 5: Solve for x
   x = 2,154,715.18/1,677.10
6. Step 6: Final answer
   x = 1,284.79