Finding the Fourth Proportional to 1,375,743.89, 1,898,526.54 and 772,131.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375,743.89 : 1,898,526.54 = 772,131.89 : x
2. Step 2: Convert to fraction form
   1,375,743.89/1,898,526.54 = 772,131.89/x
3. Step 3: Cross multiply
   1,375,743.89x = 1,898,526.54 × 772,131.89
4. Step 4: Simplify right side
   1,375,743.89x = 1,465,912,885,545.36
5. Step 5: Solve for x
   x = 1,465,912,885,545.36/1,375,743.89
6. Step 6: Final answer
   x = 1,065,541.99