Finding the Fourth Proportional to 1,353.30, 2,031.39 and 703.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,353.30 : 2,031.39 = 703.86 : x
2. Step 2: Convert to fraction form
   1,353.30/2,031.39 = 703.86/x
3. Step 3: Cross multiply
   1,353.30x = 2,031.39 × 703.86
4. Step 4: Simplify right side
   1,353.30x = 1,429,814.17
5. Step 5: Solve for x
   x = 1,429,814.17/1,353.30
6. Step 6: Final answer
   x = 1,056.54