Finding the Fourth Proportional to 1,354.47, 1,869.18 and 765.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.47 : 1,869.18 = 765.01 : x
2. Step 2: Convert to fraction form
   1,354.47/1,869.18 = 765.01/x
3. Step 3: Cross multiply
   1,354.47x = 1,869.18 × 765.01
4. Step 4: Simplify right side
   1,354.47x = 1,429,941.39
5. Step 5: Solve for x
   x = 1,429,941.39/1,354.47
6. Step 6: Final answer
   x = 1,055.72