Finding the Fourth Proportional to 1,432,498.53, 1,977,128.82 and 821,061.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432,498.53 : 1,977,128.82 = 821,061.18 : x
2. Step 2: Convert to fraction form
   1,432,498.53/1,977,128.82 = 821,061.18/x
3. Step 3: Cross multiply
   1,432,498.53x = 1,977,128.82 × 821,061.18
4. Step 4: Simplify right side
   1,432,498.53x = 1,623,343,721,961.21
5. Step 5: Solve for x
   x = 1,623,343,721,961.21/1,432,498.53
6. Step 6: Final answer
   x = 1,133,225.40