Finding the Fourth Proportional to 945,693.34, 1,303,532.24 and 639,658.06

Step by Step Solution

1. Step 1: Write the proportion equation
   945,693.34 : 1,303,532.24 = 639,658.06 : x
2. Step 2: Convert to fraction form
   945,693.34/1,303,532.24 = 639,658.06/x
3. Step 3: Cross multiply
   945,693.34x = 1,303,532.24 × 639,658.06
4. Step 4: Simplify right side
   945,693.34x = 833,814,903,785.86
5. Step 5: Solve for x
   x = 833,814,903,785.86/945,693.34
6. Step 6: Final answer
   x = 881,696.92