Finding the Fourth Proportional to 1,047.88, 1,445.70 and 697.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.88 : 1,445.70 = 697.96 : x
2. Step 2: Convert to fraction form
   1,047.88/1,445.70 = 697.96/x
3. Step 3: Cross multiply
   1,047.88x = 1,445.70 × 697.96
4. Step 4: Simplify right side
   1,047.88x = 1,009,040.77
5. Step 5: Solve for x
   x = 1,009,040.77/1,047.88
6. Step 6: Final answer
   x = 962.94