Finding the Fourth Proportional to 1,677.10, 2,516.63 and 703.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,677.10 : 2,516.63 = 703.12 : x
2. Step 2: Convert to fraction form
   1,677.10/2,516.63 = 703.12/x
3. Step 3: Cross multiply
   1,677.10x = 2,516.63 × 703.12
4. Step 4: Simplify right side
   1,677.10x = 1,769,492.89
5. Step 5: Solve for x
   x = 1,769,492.89/1,677.10
6. Step 6: Final answer
   x = 1,055.09