Finding the Fourth Proportional to 1,540,641.30, 2,312,857.35 and 972,021.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540,641.30 : 2,312,857.35 = 972,021.30 : x
2. Step 2: Convert to fraction form
   1,540,641.30/2,312,857.35 = 972,021.30/x
3. Step 3: Cross multiply
   1,540,641.30x = 2,312,857.35 × 972,021.30
4. Step 4: Simplify right side
   1,540,641.30x = 2,248,146,608,061.56
5. Step 5: Solve for x
   x = 2,248,146,608,061.56/1,540,641.30
6. Step 6: Final answer
   x = 1,459,227.80