Finding the Fourth Proportional to 1,109,544.72, 1,531,156.73 and 619,521.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,544.72 : 1,531,156.73 = 619,521.81 : x
2. Step 2: Convert to fraction form
   1,109,544.72/1,531,156.73 = 619,521.81/x
3. Step 3: Cross multiply
   1,109,544.72x = 1,531,156.73 × 619,521.81
4. Step 4: Simplify right side
   1,109,544.72x = 948,584,985,665.67
5. Step 5: Solve for x
   x = 948,584,985,665.67/1,109,544.72
6. Step 6: Final answer
   x = 854,931.73