Finding the Fourth Proportional to 1,152,830.91, 1,727,045.86 and 645,858.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152,830.91 : 1,727,045.86 = 645,858.34 : x
2. Step 2: Convert to fraction form
   1,152,830.91/1,727,045.86 = 645,858.34/x
3. Step 3: Cross multiply
   1,152,830.91x = 1,727,045.86 × 645,858.34
4. Step 4: Simplify right side
   1,152,830.91x = 1,115,426,972,243.47
5. Step 5: Solve for x
   x = 1,115,426,972,243.47/1,152,830.91
6. Step 6: Final answer
   x = 967,554.71