Finding the Fourth Proportional to 1,402.48, 1,935.29 and 772.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.48 : 1,935.29 = 772.91 : x
2. Step 2: Convert to fraction form
   1,402.48/1,935.29 = 772.91/x
3. Step 3: Cross multiply
   1,402.48x = 1,935.29 × 772.91
4. Step 4: Simplify right side
   1,402.48x = 1,495,797.25
5. Step 5: Solve for x
   x = 1,495,797.25/1,402.48
6. Step 6: Final answer
   x = 1,066.54