Finding the Fourth Proportional to 1,401.00, 1,933.54 and 869.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.00 : 1,933.54 = 869.74 : x
2. Step 2: Convert to fraction form
   1,401.00/1,933.54 = 869.74/x
3. Step 3: Cross multiply
   1,401.00x = 1,933.54 × 869.74
4. Step 4: Simplify right side
   1,401.00x = 1,681,670.07
5. Step 5: Solve for x
   x = 1,681,670.07/1,401.00
6. Step 6: Final answer
   x = 1,200.34