Finding the Fourth Proportional to 1,402.55, 1,934.88 and 953.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.55 : 1,934.88 = 953.87 : x
2. Step 2: Convert to fraction form
   1,402.55/1,934.88 = 953.87/x
3. Step 3: Cross multiply
   1,402.55x = 1,934.88 × 953.87
4. Step 4: Simplify right side
   1,402.55x = 1,845,614.31
5. Step 5: Solve for x
   x = 1,845,614.31/1,402.55
6. Step 6: Final answer
   x = 1,315.90